Common use of SERVICE INTERCONNECTIONS Clause in Contracts

SERVICE INTERCONNECTIONS. (A) In order to utilize (i) CLASSIC CARRIER TERMINATION Service, CLASSIC CARRIER ORIGINATION Service, TRANSCEND(TM) 2000 CARRIER TERMINATION Service, TRANSCEND(TM) 2000 CARRIER ORIGINATION Service, ACCESS BASED BILLING CARRIER TERMINATION Service, ACCESS BASED BILLING CARRIER ORIGINATION Service, one or more full time dedicated connections between Customer's network and the MCI WorldCom network at one or more MCI WorldCom designated locations ("MCI WORLDCOM POP") must be established ("CARRIER SERVICE INTERCONNECTION(S)"), (ii) CLASSIC END USER DEDICATED ACCESS Service (1+ or TOLL FREE), TRANSCEND(TM) 2000 END USER DEDICATED ACCESS Service (1+ or TOLL FREE), or ACCESS BASED BILLING END USER DEDICATED ACCESS Service (1+ or TOLL FREE), one or more full time dedicated connections between an End User's private branch exchange ("PBX") or other customer premise equipment and the MCI WorldCom network at one or more MCI WorldCom POP(s) must be established ("DEDICATED SERVICE INTERCONNECTION(S)"), and (iii) PRISM I TERMINATION Service and ADVANCED TOLL FREE Service, one or more full time dedicated connections between Customer's network and the MCI WorldCom network at one or more MCI WorldCom POP(s) must be established ("CARRIER PLUS SERVICE INTERCONNECTION(S)"). Each Carrier Service interconnection, Carrier PLUS Service Interconnection and Dedicated Service Interconnection shall be comprised of one or more dedicated access circuits, as the case may be. Carrier Service Interconnection(s), Carrier PLUS Service Interconnections and Dedicated Service Interconnection(s) are collectively referred to as "SERVICE INTERCONNECTIONS". (B) The circuit(s) comprising each Service Interconnection to a MCI WorldCom POP shall be requested by Customer on the appropriate MCI WorldCom Service Request. Each Service Request will describe (among other things) the MCI WorldCom POP to which a Service Interconnection is to be established, the Requested Service Date therefor, the type and quantity of circuits comprising the Service Interconnection and any charges and other information relevant thereto, such as, Customer's originating or terminating switch location, as the case may be. Such additional information may be obtained from Customer or gathered by MCI WorldCom and recorded in Technical information Sheets provided by MCI WorldCom. (C) Once ordered, and unless otherwise provided for in this Agreement, Service Interconnection(s) or the circuits comprising each Service Interconnection may only be canceled by Customer upon not less than thirty (30) days prior written notice to MCI WorldCom. (D) With respect to a Carrier Service Interconnection or a Carrier PLUS Service Interconnection, Customer shall be solely responsible for establishing and maintaining each Carrier Service interconnection or Carrier PLUS Service Interconnection over facilities subject to MCI WorldCom's approval. With respect to Dedicated Service Interconnections, MCI WorldCom will provision and maintain local access facilities between the End User location (i.e., PBX) and the MCI WorldCom POP, subject to any LEC charges plus other applicable terms and charges set forth in MCI WorldCom's applicable tariffs (or the applicable tariffs of its affiliates), however, Customer may elect to be responsible for establishing each Dedicated Service Interconnection over facilities subject to MCI WorldCom's approval. Service Interconnections shall be only comprised of DS-1 facilities unless otherwise provided for in the Service Request and agreed to in writing by MCI WorldCom. If a Service Interconnection is proposed to be made via a local exchange carrier, MCI WorldCom will have the authority to direct Customer to utilize MCI WorldCom's entrance facilities or local serving arrangement ("LSA") with the relevant local telephone operating company, and Customer will be subject to a non-discriminatory charge therefor from MCI WorldCom. The monthly recurring charge relevant to Customer's use of LSA capacity shall be subject to upward adjustment by MCI WorldCom from time to time which adjustment, if any, shall not exceed the rate that otherwise would be charged for the equivalent switched access capacity between the same points by the relevant local telephone operating company pursuant to its published charges for the type of service in question. (E) If other private line interexchange facilities are necessary to establish a Service Interconnection, and such facilities are requested from MCI WorldCom, such facilities will be provided on an individual case basis. (F) Commencing with the second full calendar month following Start of Service for each circuit comprising a Service Interconnection (i.e., Carrier Service Interconnections, Dedicated Service Interconnections and Carrier PLUS Interconnections) and thereafter, Customer will maintain Switched Services measured usage charges per DS-1 (or DS-1 equivalent circuit) of not less than an average of $[*****] per calendar month/billing period ("MINIMUM MONTHLY USAGE"). In the event Customer fails to obtain the required Minimum Monthly Usage for the circuits comprising each Service Interconnection, MCI WorldCom will charge and Customer will pay the difference between the total combined number of DS-1s times the Minimum Monthly Usage (i.e., $[*****]) and Customer's total combined Switched Services measured usage charges for the circuit(s) comprising the Service Interconnection in question ("MINIMUM USAGE CHARGE"). MCI WorldCom CLASSIC CARRIER TERMINATION Service, CLASSIC CARRIER ORIGINATION Service and CLASSIC END USER DEDICATED Service (1+ and TOLL FREE) minutes carried over the same Service Interconnection, TRANSCEND(TM) 2000 TERMINATION Service, TRANSCEND(TM) 2000 CARRIER ORIGINATION Service and TRANSCEND(TM) 2000 END USER DEDICATED ACCESS Service (1+ and TOLL FREE) minutes carried over the same Service Interconnection, ACCESS BASED BILLING 2000 CARRIER TERMINATION Service, ACCESS BASED CARRIER ORIGINATION Service and ACCESS BASED BILLING END USER DEDICATED Service (1+ and TOLL FREE) carried over the same Service Interconnection, or PRISM I TERMINATION Service and ADVANCED TOLL FREE Service minutes carried over the same Service Interconnection, shall be included in determining if Customer has met the Minimum Monthly Usage requirement described herein. Example: Assume Customer's actual Switched Services measured usage charges for 2 DS-1s comprising a Carrier Service Interconnection at MCI WorldCom POP A is $[*****], Customer's actual Switched Services measured usage charges for 2 DS-1s comprising a Carrier Service Interconnection at MCI WorldCom POP B is $[*****], and Customer's End Users actual Switched Services measured usage charges for 1 DS-1 comprising a Dedicated Service Interconnection at MCI WorldCom POP C is $[*****]. Customer would not be subject to a Minimum Usage Charge since Customer's actual Minimum Monthly Usage is $[*****] which exceeds Customer's Minimum Monthly Usage of $[*****] [*****]. (G) DS-1 circuits comprising all Service Interconnections will be subject to a nonrecurring $[*****] per DS-1 switch port installation charge (provided the maximum charge hereunder will be $[*****] for up to 28 DS-1s ordered at the same time), and DS-3 circuits comprising all Service Interconnections will be subject to a nonrecurring per DS-3 switch port installation charge as determined on an individual case basis.

SERVICE INTERCONNECTIONS. (Aa) In order to utilize (i) CLASSIC CARRIER TERMINATION Service, CLASSIC CARRIER ORIGINATION Service, TRANSCEND(TM) 2000 CARRIER TERMINATION Service, TRANSCEND(TM) 2000 CARRIER ORIGINATION Service, ACCESS BASED BILLING CARRIER TERMINATION Service, ACCESS BASED BILLING CARRIER Service and TOLL FREE ORIGINATION Service, one or more full time dedicated connections between Customer's network and the MCI WorldCom network at one or more MCI WorldCom designated locations ("MCI WORLDCOM WorldCom POP") must be established ("CARRIER SERVICE INTERCONNECTION(S)Carrier Service Interconnections"), and (ii) CLASSIC END USER DEDICATED ACCESS Service (1+ or TOLL FREE), TRANSCEND(TM) 2000 END USER DEDICATED ACCESS Service (1+ or TOLL FREE), or ACCESS BASED BILLING END USER DEDICATED ACCESS Service (1+ or TOLL FREE)Service, one or more full time dedicated connections between an End User's private branch exchange ("PBX") or other customer premise equipment and the MCI WorldCom network at one or more MCI WorldCom POP(s) must be established ("DEDICATED SERVICE INTERCONNECTION(S)"), and (iii) PRISM I TERMINATION Dedicated Service and ADVANCED TOLL FREE Service, one or more full time dedicated connections between Customer's network and the MCI WorldCom network at one or more MCI WorldCom POP(s) must be established ("CARRIER PLUS SERVICE INTERCONNECTION(S)Interconnections"). Each Carrier Service interconnection, Carrier PLUS Service Interconnection and Dedicated Service Interconnection shall be comprised of one or more dedicated access circuits, as the case may be. Carrier Service Interconnection(s), Carrier PLUS Service Interconnections and Dedicated Service Interconnection(s) Interconnections are collectively referred to as "SERVICE INTERCONNECTIONSService Interconnections". (Bb) The circuit(s) comprising each Service Interconnection to a MCI WorldCom POP shall be requested by Customer on the appropriate MCI WorldCom Service Request. Each Service Request will describe (among other things) the MCI WorldCom POP to which a Service Interconnection is to be established, the Requested Service Date therefor, the type and quantity of circuits comprising the Service Interconnection and any charges and other information relevant thereto, such as, Customer's terminating or originating or terminating switch location, as the case may be. Such additional information may be obtained from Customer or gathered by MCI WorldCom and recorded in Technical information Information Sheets provided by MCI WorldCom. (Cc) Once ordered, and unless otherwise provided for in this AgreementTSA, Service Interconnection(s) Interconnections or the circuits comprising each Service Interconnection may only be canceled by Customer upon not less than thirty (30) days prior written notice to MCI WorldCom. (Dd) With respect to a Carrier Service Interconnection, absent the automatic number identification ("ANI") of the calling party, Customer shall provide WorldCom with a written certification (the "Certification") of the percentage of interstate (including intentional) and intrastate minutes of use relevant to the minutes of traffic to be terminated in the same state in which the WorldCom POP is located to which the Carrier Service Interconnection is made. This Certification shall be provided by Customer prior to Start of Service for any Carrier Service Interconnection and may be modified from time to time by Customer and subject to recertification upon the request of WorldCom which requests shall not be made unilaterally by WorldCom more than once each calendar quarter. Any such modification(s) or a Certification(s) shall be effective as of the first day of any calendar month and following at least forty-five (45) days notice from Customer. In the event Customer fails to make such Certification, the relevant minutes of use will be deemed to be subject to the Intrastate Rates described in the applicable Rate and Discount Schedule. In the event WorldCom or any other third party requires an audit of WorldCom's interstate/intrastate minutes of traffic, Customer agrees to cooperate in such audit at its expense and make its call detail records, billing systems and other necessary information reasonably available to WorldCom or any third party solely for the purpose of verifying Customer's interstate/intrastate minutes of traffic. Customer agrees to indemnify WorldCom for any liability WorldCom incurs in the event Customer's Certification is different than that determined by the audit. (e) With respect to Carrier PLUS Service InterconnectionInterconnections, Customer shall be solely responsible for establishing and maintaining each Carrier Service interconnection or Carrier PLUS Service Interconnection over facilities subject to MCI WorldCom's approval. With respect to Dedicated Service Interconnections, MCI WorldCom will provision and maintain local access facilities between the End User location (i.e., PBX) and the MCI WorldCom POP, subject to any LEC charges plus other applicable terms and charges set forth in MCI WorldCom's applicable tariffs (or the applicable tariffs of its affiliates)F.C.C. Tariff No. 5, however, Customer may elect to be responsible for establishing each Dedicated Service Interconnection over facilities subject to MCI WorldCom's approval. Service Interconnections shall only be only comprised of DS-1 facilities unless otherwise provided for in the Service Request and agreed to in writing by MCI WorldCom. If a Service Interconnection is proposed to be made via a local exchange carrier, MCI WorldCom will have the authority to direct Customer to utilize MCI WorldCom's entrance facilities or local serving arrangement ("LSA") with the relevant local telephone operating company, and Customer will be subject to a non-discriminatory charge therefor from MCI WorldCom. The monthly recurring charge relevant to Customer's use of LSA capacity shall be subject to upward adjustment by MCI WorldCom from time to time which adjustment, if any, shall not exceed the rate that otherwise would be charged for the equivalent switched access capacity between the same points by the relevant local telephone operating company pursuant to its published charges for the type of service in question. (Ef) If other private line interexchange facilities are necessary to establish a Service Interconnection, and such facilities are requested from MCI WorldCom, such facilities will be provided on an individual case basis. (Fg) Commencing with the second full calendar month following Start of Service for each circuit comprising a Service Interconnection (i.e., both Carrier Service Interconnections, Dedicated Service Interconnections and Carrier PLUS Dedicated Service Interconnections) and thereafter, Customer will maintain Switched Services measured usage charges per DS-1 (or DS-1 equivalent circuit) of not less than an average of $[*****] per calendar month/billing period ("MINIMUM MONTHLY USAGEMinimum Monthly Usage"). In the event Customer fails to obtain the required Minimum Monthly Usage for the circuits comprising each Service Interconnection, MCI WorldCom will charge and Customer will pay the difference between the total combined number of DS-1s times the Minimum Monthly Usage (i.e., $[*****]) and Customer's total combined Switched Services measured usage charges for the circuit(s) comprising the Service Interconnection in question ("MINIMUM USAGE CHARGEMinimum Usage Charge"). MCI WorldCom CLASSIC CARRIER TERMINATION Service, CLASSIC CARRIER Service and TOLL FREE ORIGINATION Service and CLASSIC END USER DEDICATED Service (1+ and TOLL FREE) minutes carried over the same Service Interconnection, TRANSCEND(TM) 2000 TERMINATION Service, TRANSCEND(TM) 2000 CARRIER ORIGINATION Service and TRANSCEND(TM) 2000 END USER DEDICATED ACCESS Service (1+ and TOLL FREE) minutes carried over the same Service Interconnection, ACCESS BASED BILLING 2000 CARRIER TERMINATION Service, ACCESS BASED CARRIER ORIGINATION Service and ACCESS BASED BILLING END USER DEDICATED Service (1+ and TOLL FREE) carried over the same Service Interconnection, or PRISM I TERMINATION Service and ADVANCED TOLL FREE Service minutes carried over the same Service Interconnectionif any, shall be included in determining if Customer has met the Minimum Monthly Usage requirement described hereinrequirement. Example: Assume Customer's actual Switched Services measured usage charges for 2 DS-1s comprising a Carrier Service Interconnection at MCI WorldCom POP A is $[*****], Customer's actual Switched Services measured usage charges for 2 DS-1s comprising a Carrier Service Interconnection at MCI WorldCom POP B is $[*****], and Customer's End Users actual Switched Services measured usage charges for 1 DS-1 comprising a Dedicated Service Interconnection at MCI WorldCom POP C is $[*****]. Customer would not be subject to a Minimum Usage Charge since Customer's actual Minimum Monthly Usage is $[*****] which exceeds Customer's Minimum Monthly Usage of $[*****] [*****]. (Gh) DS-1 circuits comprising all Service Interconnections will be subject to a nonrecurring $[*****] per DS-1 switch port installation charge (provided the maximum charge hereunder will be $[*****] for up to 28 DS-1s ordered at the same time)charge, and DS-3 circuits comprising all Service Interconnections will be subject to a nonrecurring per DS-3 switch port installation charge as determined on an individual case basis. ---------- [****] REPRESENTS MATERIAL WHICH HAS BEEN REDACTED PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT PURSUANT TO RULE 24B-2 UNDER THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED.

SERVICE INTERCONNECTIONS. (A) In order to utilize (i) CLASSIC CARRIER TERMINATION Service, CLASSIC CARRIER ORIGINATION Service, TRANSCEND(TM) 2000 CARRIER TERMINATION Service, TRANSCEND(TM) 2000 CARRIER ORIGINATION Service, ACCESS BASED BILLING CARRIER TERMINATION Service, ACCESS BASED BILLING CARRIER ORIGINATION Service, one or more full time dedicated connections between Customer's network and the MCI WorldCom network at one or more MCI WorldCom designated locations ("MCI WORLDCOM POP") must be established ("CARRIER SERVICE INTERCONNECTION(S)"), (ii) CLASSIC END USER DEDICATED ACCESS Service (1+ or TOLL FREE), TRANSCEND(TM) 2000 END USER DEDICATED ACCESS Service (1+ or TOLL FREE), or ACCESS BASED BILLING END USER DEDICATED ACCESS Service (1+ or TOLL FREE), one or more full time dedicated connections between an End User's private branch exchange ("PBX") or other customer premise equipment and the MCI WorldCom network at one or more MCI WorldCom POP(s) must be established ("DEDICATED SERVICE INTERCONNECTION(S)"), and (iii) PRISM I TERMINATION Service and ADVANCED TOLL FREE Service, one or more full time dedicated connections between Customer's network and the MCI WorldCom network at one or more MCI WorldCom POP(s) must be established ("CARRIER PLUS SERVICE INTERCONNECTION(S)"). Each Carrier Service interconnection, Carrier PLUS Service Interconnection and Dedicated Service Interconnection shall be comprised of one or more dedicated access circuits, as the case may be. Carrier Service Interconnection(s), Carrier PLUS Service Interconnections and Dedicated Service Interconnection(s) are collectively referred to as "SERVICE INTERCONNECTIONS". (B) The circuit(s) comprising each Service Interconnection to a MCI WorldCom POP shall be requested by Customer on the appropriate MCI WorldCom Service Request. Each Service Request will describe (among other things) the MCI WorldCom POP to which a Service Interconnection is to be established, the Requested Service Date therefor, the type and quantity of circuits comprising the Service Interconnection and any charges and other information relevant thereto, such as, Customer's originating or terminating switch location, as the case may be. Such additional information may be obtained from Customer or gathered by MCI WorldCom and recorded in Technical information Sheets provided by MCI WorldCom. (C) Once ordered, and unless otherwise provided for in this Agreement, Service Interconnection(s) or the circuits comprising each Service Interconnection may only be canceled by Customer upon not less than thirty (30) days prior written notice to MCI WorldCom. (D) With respect to a Carrier Service Interconnection or a Carrier PLUS Service Interconnection, Customer shall be solely responsible for establishing and maintaining each Carrier Service interconnection or Carrier PLUS Service Interconnection over facilities subject to MCI WorldCom's approval. With respect to Dedicated Service Interconnections, MCI WorldCom will provision and maintain local access facilities between the End User location (i.e., PBX) and the MCI WorldCom POP, subject to any LEC charges plus other applicable terms and charges set forth in MCI WorldCom's applicable tariffs (or the applicable tariffs of its affiliates), however, Customer may elect to be responsible for establishing each Dedicated Service Interconnection over facilities subject to MCI WorldCom's approval. Service Interconnections shall be only comprised of DS-1 facilities unless otherwise provided for in the Service Request and agreed to in writing by MCI WorldCom. If a Service Interconnection is proposed to be made via a local exchange carrier, MCI WorldCom will have the authority to direct Customer to utilize MCI WorldCom's entrance facilities or local serving arrangement ("LSA") with the relevant local telephone operating company, and Customer will be subject to a non-discriminatory charge therefor from MCI WorldCom. The monthly recurring charge relevant to Customer's use of LSA capacity shall be subject to upward adjustment by MCI WorldCom from time to time which adjustment, if any, shall not exceed the rate that otherwise would be charged for the equivalent switched access capacity between the same points by the relevant local telephone operating company pursuant to its published charges for the type of service in question. (E) If other private line interexchange facilities are necessary to establish a Service Interconnection, and such facilities are requested from MCI WorldCom, such facilities will be provided on an individual case basis. (F) Commencing with the second full calendar month following Start of Service for each circuit comprising a Service Interconnection (i.e., Carrier Service Interconnections, Dedicated Service Interconnections and Carrier PLUS Interconnections) and thereafter, Customer will maintain Switched Services measured usage charges per DS-1 (or DS-1 equivalent circuit) of not less than an average of $[*****] per calendar month/billing period ("MINIMUM MONTHLY USAGE"). In the event Customer fails to obtain the required Minimum Monthly Usage for the circuits comprising each Service Interconnection, MCI WorldCom will charge and Customer will pay the difference between the total combined number of DS-1s times the Minimum Monthly Usage (i.e., $[*****]) and Customer's total combined Switched Services measured usage charges for the circuit(s) comprising the Service Interconnection in question ("MINIMUM USAGE CHARGE"). MCI WorldCom CLASSIC CARRIER TERMINATION Service, CLASSIC CARRIER ORIGINATION Service and CLASSIC END USER DEDICATED Service (1+ and TOLL FREE) minutes carried over the same Service Interconnection, TRANSCEND(TM) 2000 TERMINATION Service, TRANSCEND(TM) 2000 CARRIER ORIGINATION Service and TRANSCEND(TM) 2000 END USER DEDICATED ACCESS Service (1+ and TOLL FREE) minutes carried over the same Service Interconnection, ACCESS BASED BILLING 2000 CARRIER TERMINATION Service, ACCESS BASED CARRIER ORIGINATION Service and ACCESS BASED BILLING END USER DEDICATED Service (1+ and TOLL FREE) carried over the same Service Interconnection, or PRISM I TERMINATION Service and ADVANCED TOLL FREE Service minutes carried over the same Service Interconnection, shall be included in determining if Customer has met the Minimum Monthly Usage requirement described herein. Example: Assume Customer's actual Switched Services measured usage charges for 2 DS-1s comprising a Carrier Service Interconnection at MCI WorldCom POP A is $[*****], Customer's actual Switched Services measured usage charges for 2 DS-1s comprising a Carrier Service Interconnection at MCI WorldCom POP B is $[*****], and Customer's End Users actual Switched Services measured usage charges for 1 DS-1 comprising a Dedicated Service Interconnection at MCI WorldCom POP C is $[*****]. Customer would not be subject to a Minimum Usage Charge since Customer's actual Minimum Monthly Usage is $[*****] which exceeds Customer's Minimum Monthly Usage of $[*****] [*****]. (G) DS-1 circuits comprising all Service Interconnections will be subject to a nonrecurring $[*****] per DS-1 switch port installation charge (provided the maximum charge hereunder will be $[*****] for up to 28 DS-1s ordered at the same time), and DS-3 circuits comprising all Service Interconnections will be subject to a nonrecurring per DS-3 switch port installation charge as determined on an individual case basis.

SERVICE INTERCONNECTIONS. (A) In order to utilize (i) CLASSIC 2000 CARRIER TERMINATION Service, CLASSIC 2000 CARRIER ORIGINATION Service, TRANSCEND(TM) TRANSCEND® 2000 CARRIER TERMINATION Service, TRANSCEND(TM) TRANSCEND® 2000 CARRIER ORIGINATION Service, ACCESS BASED BILLING CARRIER TERMINATION Service, ACCESS BASED BILLING CARRIER ORIGINATION Service, one or * CERTAIN INFORMATION IN THIS EXHIBIT HAS BEEN OMITTED AND FILED SEPARATELY WITH THE COMMISSION. CONFIDENTIAL TREATMENT HAS BEEN REQUESTED WITH RESPECT TO THE OMITTED PORTIONS. more full time dedicated connections between Customer's network and the MCI WorldCom network at one or more MCI WorldCom designated locations ("MCI WORLDCOM WorldCom POP") must be established ("CARRIER SERVICE INTERCONNECTION(SCarrier Service Interconnection(s)"), (ii) CLASSIC 2000 END USER DEDICATED ACCESS Service (1+ or TOLL FREE), TRANSCEND(TM) TRANSCEND® 2000 END USER DEDICATED ACCESS Service (1+ or TOLL FREE), or ACCESS BASED BILLING END USER DEDICATED ACCESS Service (1+ or TOLL FREE), one or more full time dedicated connections between an End User's private branch exchange ("PBX") or other customer premise equipment and the MCI WorldCom Worldcom network at one or more MCI WorldCom POP(s) must be established ("DEDICATED SERVICE INTERCONNECTION(SDedicated Service Interconnection(s)"), and (iii) PRISM I TERMINATION Service and ADVANCED TOLL FREE Service, one or more full time dedicated connections between Customer's network and the MCI WorldCom network at one or more MCI WorldCom POP(s) must be established ("CARRIER Carrier PLUS SERVICE INTERCONNECTION(SService Interconnection(s)"). Each Carrier Service interconnectionInterconnection, Carrier PLUS Service Interconnection and Dedicated Service Interconnection shall be comprised of one or more dedicated access circuits, as the case may be. Carrier Service Interconnection(s), Carrier PLUS Service Interconnections and Dedicated Service Interconnection(s) are collectively referred to as "SERVICE INTERCONNECTIONSService Interconnections". (B) The circuit(s) comprising each Service Interconnection to a MCI WorldCom POP shall be requested by Customer on the appropriate MCI WorldCom Service Request. Each Service Request will describe (among other things) the MCI WorldCom POP to which a Service Interconnection is to be established, the Requested Service Date therefor, the type and quantity of circuits comprising the Service Interconnection and any charges and other information relevant thereto, such as, Customer's originating or terminating switch location, as the case may be. Such additional information may be obtained from Customer or gathered by MCI WorldCom and recorded in Technical information Information Sheets provided by MCI WorldCom. (C) Once ordered, and unless otherwise provided for in this Agreement, Service Interconnection(s) or the circuits comprising each Service Interconnection may only be canceled by Customer upon not less than thirty (30) days prior written notice to MCI WorldCom. (D) With respect to a Carrier Service Interconnection or a Carrier PLUS Service Interconnection, Customer shall be solely responsible for establishing and maintaining each Carrier Service interconnection Interconnection or Carrier PLUS Service Interconnection over facilities subject to MCI WorldCom's approval. With respect to Dedicated Service Interconnections, MCI WorldCom will provision and maintain local access facilities between the End User location (i.e., PBX) and the MCI WorldCom POP, subject to any LEC charges plus other applicable terms and charges set forth in MCI WorldCom's applicable tariffs (or the applicable tariffs of its affiliates), however, Customer may elect to be responsible for establishing each Dedicated Service Interconnection over facilities subject to MCI WorldCom's approval. Service Interconnections shall be only comprised of DS-1 facilities unless otherwise provided for in the Service Request and agreed to in writing by MCI WorldCom. If a Service Interconnection is proposed to be made via a local exchange carrier, MCI WorldCom will have the authority to direct Customer to utilize MCI WorldCom's entrance facilities or local serving arrangement ("LSA") with the relevant local telephone operating company, and Customer will be subject to a non-discriminatory charge therefor from MCI WorldCom. The monthly recurring charge relevant to Customer's use of LSA capacity shall be subject to upward adjustment by MCI WorldCom from time to time which adjustment, if any, shall not exceed the rate that otherwise would be charged for the equivalent switched access capacity between the same points by the relevant local telephone operating company pursuant to its published charges for the type of service in question. (E) If other private line interexchange facilities are necessary to establish a Service Interconnection, and such facilities are requested from MCI WorldCom, such facilities will be provided on an individual case basis. * CERTAIN INFORMATION IN THIS EXHIBIT HAS BEEN OMITTED AND FILED SEPARATELY WITH THE COMMISSION. CONFIDENTIAL TREATMENT HAS BEEN REQUESTED WITH RESPECT TO THE OMITTED PORTIONS. (F) Commencing with the second full calendar month following Start of Service for each circuit comprising a Service Interconnection (i.e., Carrier Service Interconnections, Dedicated Service Interconnections and Carrier PLUS Interconnections) and thereafter, Customer will maintain Switched Services measured usage charges per DS-1 (or DS-1 equivalent circuit) of not less than an average of $[*****] * per calendar month/billing period ("MINIMUM MONTHLY USAGEMinimum Monthly Usage"). In the event Customer fails to obtain the required Minimum Monthly Usage for the circuits comprising each Service Interconnection, MCI WorldCom will charge and Customer will pay the difference between the total combined number of DS-1s times the Minimum Monthly Usage (i.e., $[*****]) * and Customer's total combined Switched Services measured usage charges for the circuit(s) comprising the Service Interconnection in question questions ("MINIMUM USAGE CHARGEMinimum Usage Charge"). MCI WorldCom CLASSIC 2000 CARRIER TERMINATION Service, CLASSIC 2000 CARRIER ORIGINATION Service and CLASSIC 2000 END USER DEDICATED Service (1+ and TOLL FREE) minutes carried over the same Service Interconnection, TRANSCEND(TM) TRANSCEND® 2000 TERMINATION Service, TRANSCEND(TM) TRANSCEND® 2000 CARRIER ORIGINATION Service and TRANSCEND(TM) TRANSCEND® 2000 END USER DEDICATED ACCESS Service (1+ and TOLL FREE) minutes carried over the same Service Interconnection, ACCESS BASED BILLING 2000 CARRIER TERMINATION Service, ACCESS BASED CARRIER ORIGINATION Service and ACCESS BASED BILLING END USER DEDICATED Service (1+ and TOLL FREE) carried over the same Service Interconnection, or PRISM I TERMINATION Service and ADVANCED TOLL FREE Service minutes carried over the same Service Interconnection, shall be included in determining if Customer has met the Minimum Monthly Usage requirement described herein. Example: Assume Customer's actual Switched Services measured usage charges for 2 DS-1s comprising a Carrier Service Interconnection at MCI WorldCom POP A is $[*****], Customer's actual Switched Services measured usage charges for 2 DS-1s comprising a Carrier Service Interconnection at MCI WorldCom POP B is $[*****], and Customer's End Users actual Switched Services measured usage charges for 1 DS-1 comprising a Dedicated Service Interconnection at MCI WorldCom POP C is $[*****]. Customer would not be subject to a Minimum Usage Charge since Customer's actual Minimum Monthly Usage is $[*****] which exceeds Customer's Minimum Monthly Usage of $[*****] [*****]. (G) DS-1 circuits comprising all Service Interconnections will be subject to a nonrecurring $[*****] * per DS-1 switch port installation charge (provided the maximum charge hereunder will be $[*****] * for up to 28 DS-1s ordered at the same time), and DS-3 circuits comprising all Service Interconnections will be subject to a nonrecurring per DS-3 switch port installation charge as determined on an individual case basis.

SERVICE INTERCONNECTIONS. (Aa) In order to utilize (i) CLASSIC CARRIER TERMINATION Service, CLASSIC CARRIER ORIGINATION Service, TRANSCEND(TM) 2000 CARRIER TERMINATION Service, TRANSCEND(TM) 2000 CARRIER ORIGINATION Service, ACCESS BASED BILLING CARRIER TERMINATION Service, ACCESS BASED BILLING CARRIER Service and TOLL FREE ORIGINATION Service, one or more full time dedicated connections between Customer's network and the MCI WorldCom network at one or more MCI WorldCom designated locations ("MCI WORLDCOM WorldCom POP") must be established ("CARRIER SERVICE INTERCONNECTION(S)Carrier Service Interconnections"), and (ii) CLASSIC END USER DEDICATED ACCESS Service (1+ or TOLL FREE), TRANSCEND(TM) 2000 END USER DEDICATED ACCESS Service (1+ or TOLL FREE), or ACCESS BASED BILLING END USER DEDICATED ACCESS Service (1+ or TOLL FREE)Service, one or more full time dedicated connections between an End User's private branch exchange ("PBX") or other customer premise equipment and the MCI WorldCom network at one or more MCI WorldCom POP(s) must be established ("DEDICATED SERVICE INTERCONNECTION(S)"), and (iii) PRISM I TERMINATION Dedicated Service and ADVANCED TOLL FREE Service, one or more full time dedicated connections between Customer's network and the MCI WorldCom network at one or more MCI WorldCom POP(s) must be established ("CARRIER PLUS SERVICE INTERCONNECTION(S)Interconnections"). Each Carrier Service interconnection, Carrier PLUS Service Interconnection and Dedicated Service Interconnection shall be comprised of one or more dedicated access circuits, as the case may be. Carrier Service Interconnection(s), Carrier PLUS Service Interconnections and Dedicated Service Interconnection(s) Interconnections are collectively referred to as "SERVICE INTERCONNECTIONSService Interconnections". (Bb) The circuit(s) comprising each Service Interconnection to a MCI WorldCom POP shall be requested by Customer on the appropriate MCI WorldCom Service Request. Each Service Request will describe (among other things) the MCI WorldCom POP to which a Service Interconnection is to be established, the Requested Service Date therefor, the type and quantity of circuits comprising the Service Interconnection and any charges and other information relevant thereto, such as, Customer's terminating or originating or terminating switch location, as the case may be. Such additional information may be obtained from Customer or gathered by MCI WorldCom and recorded in Technical information Information Sheets provided by MCI WorldCom. (Cc) Once ordered, and unless otherwise provided for in this AgreementTSA, Service Interconnection(s) Interconnections or the circuits comprising each Service Interconnection may only be canceled by Customer upon not less than thirty (30) days prior written notice to MCI WorldCom. (Dd) With respect to a Carrier Service Interconnection, absent the automatic number identification ("ANI") of the calling party, Customer shall provide WorldCom with a written certification (the "Certification") of the percentage of interstate (including international) and intrastate minutes of use relevant to the minutes of traffic to be terminated in the same state in which the WorldCom POP is located to which the Carrier Service Interconnection is made. This Certification shall be provided by Customer prior to Start of Service for any. Carrier Service Interconnection and may be modified from time to time by Customer and subject to recertification upon the request of WorldCom which requests shall not be made unilaterally by WorldCom more than once each calendar quarter. Any such modification(s) or a Certification(s) shall be effective as of the first day of any calendar month and following at least forty-five (45) days notice from Customer. In the event Customer fails to make such Certification, the relevant minutes of use will be deemed to be subject to the Intrastate Rates described in the applicable Rate and Discount Schedule. In the event WorldCom or any other third party requires an audit of WorldCom's interstate/intrastate minutes of traffic, Customer agrees to cooperate in such audit at its expense and make its call detail records, billing systems and other necessary information reasonably available to WorldCom or any third party solely for the purpose of verifying Customer's interstate/intrastate minutes of traffic. Customer agrees to indemnify WorldCom for any liability WorldCom incurs in the event Customers Certification is different than that determined by the audit. (e) With respect to Carrier PLUS Service InterconnectionInterconnections, Customer shall be solely responsible for establishing and maintaining each Carrier Service interconnection or Carrier PLUS Service Interconnection over facilities subject to MCI WorldCom's approval. With respect to Dedicated Service Interconnections, MCI WorldCom will provision and maintain local access facilities between the End User location (i.e., PBX) and the MCI WorldCom POP, subject to any LEC charges plus other applicable terms and charges set forth in MCI WorldCom's applicable tariffs (or the applicable tariffs of its affiliates)F.C.C. Tariff No. 5, however, Customer may elect to be responsible for establishing each Dedicated Service Interconnection over facilities subject to MCI WorldCom's approval. Service Interconnections shall only be only comprised of DS-1 facilities unless otherwise provided for in the Service Request and agreed to in writing by MCI WorldCom. If a Service Interconnection is proposed to be made via a local exchange carrier, MCI WorldCom will have the authority to direct Customer to utilize MCI WorldCom's entrance facilities or local serving arrangement ("LSA") with the relevant local telephone operating company, and Customer will be subject to a non-discriminatory charge therefor from MCI WorldCom. The monthly recurring charge relevant to Customer's use of LSA capacity shall be subject to upward adjustment by MCI WorldCom from time to time which adjustment, if any, shall not exceed the rate that otherwise would be charged for the equivalent switched access capacity between the same points by the relevant local telephone operating company pursuant to its published charges for the type of service in question. (Ef) If other private line interexchange facilities are necessary to establish a Service Interconnection, and such facilities are requested from MCI WorldCom, such facilities will be provided on an individual case basis. (Fg) Commencing with the second full calendar month following Start of Service for each circuit comprising a Service Interconnection (i.e., both Carrier Service Interconnections, Dedicated Service Interconnections and Carrier PLUS Dedicated Service Interconnections) and thereafter, Customer will maintain Switched Services measured usage charges per DS-1 (or DS-1 equivalent circuit) of not less than an average of $[*****] 1,500 per calendar month/billing period ("MINIMUM MONTHLY USAGEMinimum Monthly Usage"). In the event Customer fails to obtain the required Minimum Monthly Usage for the circuits comprising each Service Interconnection, MCI WorldCom will charge and Customer will pay the difference between the total combined number of DS-1s times the Minimum Monthly Usage (i.e., $[*****]1,500) and Customer's total combined Switched Services measured usage charges for the circuit(s) comprising the Service Interconnection in question ("MINIMUM USAGE CHARGEMinimum Usage Charge"). MCI WorldCom CLASSIC CARRIER TERMINATION Service, CLASSIC CARRIER Service and TOLL FREE ORIGINATION Service and CLASSIC END USER DEDICATED Service (1+ and TOLL FREE) minutes carried over the same Service Interconnection, TRANSCEND(TM) 2000 TERMINATION Service, TRANSCEND(TM) 2000 CARRIER ORIGINATION Service and TRANSCEND(TM) 2000 END USER DEDICATED ACCESS Service (1+ and TOLL FREE) minutes carried over the same Service Interconnection, ACCESS BASED BILLING 2000 CARRIER TERMINATION Service, ACCESS BASED CARRIER ORIGINATION Service and ACCESS BASED BILLING END USER DEDICATED Service (1+ and TOLL FREE) carried over the same Service Interconnection, or PRISM I TERMINATION Service and ADVANCED TOLL FREE Service minutes carried over the same Service Interconnectionif any, shall be included in determining if Customer has met the Minimum Monthly Usage requirement described hereinrequirement. Example: Assume Customer's Customers actual Switched Services measured usage charges for 2 DS-1s comprising a Carrier Service Interconnection at MCI WorldCom POP A is $[*****]3,500, Customer's Customers actual Switched Services measured usage charges for 2 DS-1s comprising a Carrier Service Interconnection at MCI WorldCom POP B is $[*****]4,500, and Customer's End Users User's actual Switched Services measured usage charges for 1 DS-1 comprising a Dedicated Service Interconnection at MCI WorldCom POP C is $[*****]600. Customer would not be subject to a Minimum Usage Charge since Customer's actual Minimum Monthly Usage is $[*****] 8,600 which exceeds Customer's Minimum Monthly Usage of $7,500 [*****] [*****5 x $1,500]. (Gh) DS-1 circuits comprising all Service Interconnections will be subject to a nonrecurring $[*****] 400 per DS-1 switch port installation charge (provided the maximum charge hereunder will be $[*****] for up to 28 DS-1s ordered at the same time)charge, and DS-3 circuits comprising all Service Interconnections will be subject to a nonrecurring per DS-3 switch port installation charge as determined on an individual case basis.

SERVICE INTERCONNECTIONS. (A) In order to utilize (i) CLASSIC 2000 CARRIER TERMINATION Service, CLASSIC 2000 CARRIER ORIGINATION Service, TRANSCEND(TM) TRANSCENDJ 2000 CARRIER TERMINATION Service, TRANSCEND(TM) TRANSCENDJ 2000 CARRIER ORIGINATION Service, ACCESS BASED BILLING CARRIER TERMINATION Service, ACCESS BASED BILLING CARRIER ORIGINATION Service, one or more full time dedicated connections between Customer's network and the MCI WorldCom network at one or more MCI WorldCom designated locations ("MCI WORLDCOM POP") must be established ("CARRIER SERVICE INTERCONNECTION(S)"), (ii) CLASSIC 2000 END USER DEDICATED ACCESS Service (1+ or TOLL FREE), TRANSCEND(TM) TRANSCENDJ 2000 END USER DEDICATED ACCESS Service (1+ or TOLL FREE), or ACCESS BASED BILLING END USER DEDICATED ACCESS Service (1+ or TOLL FREE), one or more full time dedicated connections between an End User's private branch exchange ("PBX") or other customer premise equipment and the MCI WorldCom network at one or more MCI WorldCom POP(s) must be established ("DEDICATED SERVICE INTERCONNECTION(S)"), and (iii) PRISM I TERMINATION Service and ADVANCED TOLL FREE Service, one or more full time dedicated connections between Customer's network and the MCI WorldCom network at one or more MCI WorldCom POP(s) must be established ("CARRIER PLUS SERVICE INTERCONNECTION(S)"). Each Carrier Service interconnectionInterconnection, Carrier PLUS Service Interconnection and Dedicated Service Interconnection shall be comprised of one or more dedicated access circuits, as the case may be. Carrier Service Interconnection(s), Carrier PLUS Service Interconnections and Dedicated Service Interconnection(s) are collectively referred to as "SERVICE INTERCONNECTIONS". (B) The circuit(s) comprising each Service Interconnection to a MCI WorldCom POP shall be requested by Customer on the appropriate MCI WorldCom Service Request. Each Service Request will describe (among other things) the MCI WorldCom POP to which a Service Interconnection is to be established, the Requested Service Date therefor, the type and quantity of circuits comprising the Service Interconnection and any charges and other information relevant thereto, such as, Customer's originating or terminating switch location, as the case may be. Such additional information may be obtained from Customer or gathered by MCI WorldCom and recorded in Technical information Information Sheets provided by MCI WorldCom. (C) Once ordered, and unless otherwise provided for in this Agreement, Service Interconnection(s) or the circuits comprising each Service Interconnection may only be canceled by Customer upon not less than thirty (30) days prior written notice to MCI WorldCom. (D) With respect to a Carrier Service Interconnection or a Carrier PLUS Service Interconnection, Customer shall be solely responsible for establishing and maintaining each Carrier Service interconnection Interconnection or Carrier PLUS Service Interconnection over facilities subject to MCI WorldCom's approval. With respect to Dedicated Service Interconnections, MCI WorldCom will provision and maintain local access facilities between the End User location (i.e., PBX) and the MCI WorldCom POP, subject to any LEC charges plus other applicable terms and charges set forth in MCI WorldCom's applicable tariffs (or the applicable tariffs of its affiliates), however, Customer may elect to be responsible for establishing each Dedicated Service Interconnection over facilities subject to MCI WorldCom's approval. Service Interconnections shall be only comprised of DS-1 facilities unless otherwise provided for in the Service Request and agreed to in writing by MCI WorldCom. If a Service Interconnection is proposed to be made via a local exchange carrier, MCI WorldCom will have the authority to direct Customer to utilize MCI WorldCom's entrance facilities or local serving arrangement ("LSA") with the relevant local telephone operating company, and Customer will be subject to a non-discriminatory charge therefor from MCI WorldCom. The monthly recurring charge relevant to Customer's use of LSA capacity shall be subject to upward adjustment by MCI WorldCom from time to time which adjustment, if any, shall not exceed the rate that otherwise would be charged for the equivalent switched access capacity between the same points by the relevant local telephone operating company pursuant to its published charges for the type of service in question. (E) If other private line interexchange facilities are necessary to establish a Service Interconnection, and such facilities are requested from MCI WorldCom, such facilities will be provided on an individual case basis. (F) Commencing with the second full calendar month following Start of Service for each circuit comprising a Service Interconnection (i.e., Carrier Service Interconnections, Dedicated Service Interconnections and Carrier PLUS Interconnections) and thereafter, Customer will maintain Switched Services measured usage charges per DS-1 (or DS-1 equivalent circuit) of not less than an average of $[*****] 1,500 per calendar month/billing period ("MINIMUM MONTHLY USAGE"). In the event Customer fails to obtain the required Minimum Monthly Usage for the circuits comprising each Service Interconnection, MCI WorldCom will charge and Customer will pay the difference between the total combined number of DS-1s times the Minimum Monthly Usage (i.e., $[*****]1,500) and Customer's total combined Switched Services measured usage charges for the circuit(s) comprising the Service Interconnection in question ("MINIMUM USAGE CHARGE"). MCI WorldCom CLASSIC 2000 CARRIER TERMINATION Service, CLASSIC 2000 CARRIER ORIGINATION Service and CLASSIC 2000 END USER DEDICATED Service (1+ and TOLL FREE) minutes carried over the same Service Interconnection, TRANSCEND(TM) TRANSCENDJ 2000 TERMINATION Service, TRANSCEND(TM) TRANSCENDJ 2000 CARRIER ORIGINATION Service and TRANSCEND(TM) TRANSCENDJ 2000 END USER DEDICATED ACCESS Service (1+ and TOLL FREE) minutes carried over the same Service Interconnection, ACCESS BASED BILLING 2000 CARRIER TERMINATION Service, ACCESS BASED CARRIER ORIGINATION Service and ACCESS BASED BILLING END USER DEDICATED Service (1+ and TOLL FREE) carried over the same Service Interconnection, or PRISM I TERMINATION Service and ADVANCED TOLL FREE Service minutes carried over the same Service Interconnection, shall be included in determining if Customer has met the Minimum Monthly Usage requirement described herein. Example: Assume Customer's actual Switched Services measured usage charges for 2 DS-1s comprising a Carrier Service Interconnection at MCI WorldCom POP A is $[*****]3,500, Customer's actual Switched Services measured usage charges for 2 DS-1s comprising a Carrier Service Interconnection at MCI WorldCom POP B is $[*****]4,500, and Customer's End Users User's actual Switched Services measured usage charges for 1 DS-1 comprising a Dedicated Service Interconnection at MCI WorldCom POP C is $[*****]600. Customer would not be subject to a Minimum Usage Charge since Customer's actual Minimum Monthly Usage is $[*****] 8,600 which exceeds Customer's Minimum Monthly Usage of $7,500 [*****] [*****5 x $1,500]. (G) DS-1 circuits comprising all Service Interconnections will be subject to a nonrecurring $[*****] 400 per DS-1 switch port installation charge (provided the maximum charge hereunder will be $[*****] 2,000 for up to 28 DS-1s ordered at the same time), and DS-3 circuits comprising all Service Interconnections will be subject to a nonrecurring per DS-3 switch port installation charge as determined on an individual case basis.

SERVICE INTERCONNECTIONS. (A) In order to utilize (i) CLASSIC CARRIER TERMINATION Service, CLASSIC CARRIER ORIGINATION Service, TRANSCEND(TM) 2000 CARRIER TERMINATION Service, TRANSCEND(TM) 2000 CARRIER ORIGINATION Service, ACCESS BASED BILLING CARRIER TERMINATION Service, Service or ACCESS BASED BILLING CARRIER ORIGINATION Service, one or more full time dedicated connections between Customer's network and the MCI WorldCom network at one or more MCI WorldCom designated locations ("MCI WORLDCOM POP") must be established ("CARRIER SERVICE INTERCONNECTION(SCarrier Service Interconnection(s)"), and (ii) CLASSIC END USER DEDICATED ACCESS Service (1+ or TOLL FREE), TRANSCEND(TM) 2000 END USER DEDICATED ACCESS Service (1+ or TOLL FREE), or ACCESS BASED BILLING END USER DEDICATED ACCESS Service (1+ or TOLL FREE), one or more full time dedicated connections between an End User's private branch exchange ("PBX") or other customer premise equipment and the MCI WorldCom network at one or more MCI WorldCom POP(s) must be established ("DEDICATED SERVICE INTERCONNECTION(S)"), and (iii) PRISM I TERMINATION Dedicated Service and ADVANCED TOLL FREE Service, one or more full time dedicated connections between Customer's network and the MCI WorldCom network at one or more MCI WorldCom POP(s) must be established ("CARRIER PLUS SERVICE INTERCONNECTION(SInterconnection(s)"). Each Carrier Service interconnection, Carrier PLUS Service Interconnection and Dedicated Service Interconnection shall be comprised of one or more dedicated access circuits, as the case may be. Carrier Service Interconnection(s), Carrier PLUS Service Interconnections ) and Dedicated Service Interconnection(s) are collectively referred to as "SERVICE INTERCONNECTIONS".Service Interconnections (B) The circuit(s) comprising each Service Interconnection to a MCI WorldCom POP shall be requested by Customer on the appropriate MCI WorldCom Service Request. Each Service Request will describe (among other things) the MCI WorldCom POP to which a Service Interconnection is to be established, the Requested Service Date therefor, the type and quantity of circuits comprising the Service Interconnection and any charges and other information relevant thereto, such as, Customer's originating or terminating switch location, as the case may be. Such additional information may be obtained from Customer or gathered by MCI WorldCom and recorded in Technical information Information Sheets provided by MCI WorldComMCI. (C) Once ordered, and unless otherwise provided for in this Agreement, Service Interconnection(s) or the circuits comprising each Service Interconnection may only be canceled by Customer upon not less than thirty (30) days prior written notice to MCI WorldComMCI. (D) With respect to a Carrier Service Interconnection or a Carrier PLUS Service Interconnection, Customer shall be solely responsible for establishing and maintaining each Carrier Service interconnection or Carrier PLUS Service Interconnection over facilities subject to MCI WorldComMCI's approval. With respect to Dedicated Service Interconnections, MCI WorldCom will provision and maintain local access facilities between the End User location (i.e., PBX) and the MCI WorldCom POP, subject to any LEC charges plus other applicable terms and charges set forth in MCI WorldComMCI's applicable tariffs (or the applicable tariffs of its affiliates), however, Customer may elect to be responsible for establishing each Dedicated Service Interconnection over facilities subject to MCI WorldComMCI's approval. Service Interconnections shall be only comprised of DS-1 facilities unless otherwise provided for in the Service Request and agreed to in writing by MCI WorldComMCI. If a Service Interconnection is proposed to be made via a local exchange carrier, MCI WorldCom will have the authority to direct Customer to utilize MCI WorldComMCI's entrance facilities or local serving arrangement ("LSA") with the relevant local telephone operating company, and Customer will be subject to a non-discriminatory charge therefor from MCI WorldComMCI. The monthly recurring charge relevant to Customer's use of LSA capacity shall be subject to upward adjustment by MCI WorldCom from time to time which adjustment, if any, shall not exceed the rate that otherwise would be charged for the equivalent switched access capacity between the same points by the relevant local telephone operating company pursuant to its published charges for the type of service in question. (E) If other private line interexchange facilities are necessary to establish a Service Interconnection, and such facilities are requested from MCI WorldComMCI, such facilities will be provided on an individual case basis. (F) Commencing with the second full calendar month following Start of Service for each circuit comprising a Service Interconnection (i.e., Carrier Service Interconnections, Interconnections and Dedicated Service Interconnections and Carrier PLUS Interconnections) and thereafter, Customer will maintain Switched Services measured usage charges per DS-1 DS-i (or DS-1 equivalent circuit) of not less than an average of $[*****] * per calendar month/billing period ("MINIMUM MONTHLY USAGEMinimum Monthly Usage"). In the event Customer fails to obtain the required Minimum Monthly Usage for the circuits comprising each Service Interconnection, MCI WorldCom will charge and Customer will pay the difference between the total combined number of DS-1s DSis times the Minimum Monthly Usage (i.e., $[*****]) and Customer's total combined Switched Services measured usage charges for the circuit(s) comprising the Service Interconnection in question ("MINIMUM USAGE CHARGEMinimum Usage Charge"). MCI WorldCom CLASSIC CARRIER TERMINATION Service, CLASSIC CARRIER ORIGINATION Service and CLASSIC END USER DEDICATED Service (1+ and TOLL FREE) minutes carried over the same Service Interconnection, TRANSCEND(TM) 2000 TERMINATION Service, TRANSCEND(TM) 2000 CARRIER ORIGINATION Service and TRANSCEND(TM) 2000 END USER DEDICATED ACCESS Service (1+ and TOLL FREE) minutes carried over the same Service Interconnection, ACCESS BASED BILLING 2000 CARRIER TERMINATION Service, ACCESS BASED BILLING CARRIER ORIGINATION Service and ACCESS BASED BILLING END USER DEDICATED Service (1+ and TOLL FREE) carried over the same Service Interconnection, or PRISM I TERMINATION Service and ADVANCED TOLL FREE Service minutes carried over the same Service Interconnection, Interconnection shall be included in determining if Customer has met the Minimum Monthly Usage requirement described herein. * Designates information which has been filed on a confidential basis. Example: Assume Customer's actual Switched Services measured usage charges for 2 DS-1s DS-is comprising a Carrier Service Interconnection at MCI WorldCom POP A is $[*****], Customer's actual Switched Services measured usage charges for 2 DS-1s DS-i s comprising a Carrier Service Interconnection at MCI WorldCom POP B is $[*****], and Customer's End Users User's actual Switched Services measured usage charges for 1 DS-1 DS-i comprising a Dedicated Service Interconnection at MCI WorldCom POP C is $[*****]. Customer would not be subject to a Minimum Usage Charge since Customer's actual Minimum Monthly Usage is $[*****] , which exceeds Customer's Minimum Monthly Usage of $[*****] [*****]. * Designates information which has been filed on a confidential basis. (G) DS-1 DS-i circuits comprising all Service Interconnections will be subject to a nonrecurring installation charge of $[*****] 400 per DS-1 DS-i switch port installation charge (provided the maximum charge hereunder will be $[*****] * for up to 28 DS-1s DS-is ordered at the same time), and DS-3 circuits comprising all Service Interconnections will be subject to a nonrecurring installation charge per DS-3 switch port installation charge as determined on an individual case basis. * Designates information which has been filed on a confidential basis.