Switching System Hierarchy. 4.2.1 For purposes of this Article IV, each of the following Central Office Switches shall be designated as a “Primary Switch”:
(a) Each access Tandem Ameritech operates in the LATA;
(b) The initial switch Requesting Carrier employs to provide Telephone Exchange Service in the LATA;
(c) Any access Tandem Requesting Carrier may establish for provision of Exchange Access in the LATA; and
(d) Any additional switch Requesting Carrier may subsequently employ to provide Telephone Exchange Service in the LATA which Requesting Carrier may at its sole option designate as a Primary Switch; provided that the total number of Requesting Carrier Primary Switches for a LATA may not exceed the total number of Ameritech’s Primary Switches for that LATA. To the extent Requesting Carrier chooses to designate any additional switch as a Primary Switch, it shall provide notice to Ameritech of such designation at least ninety (90) days in advance of the date on which Requesting Carrier activates such switch as a Primary Switch.
4.2.2 Each Central Office Switch operated by the Parties which is not designated as a Primary Switch pursuant to Section IV.2.1 shall be designated as a “Secondary Switch”.
4.2.3 For purposes of Requesting Carrier routing traffic to Ameritech, sub-tending arrangements between Ameritech Primary Switches and Ameritech Secondary Switches shall be the same as the access Tandem/End Office sub-tending arrangements which Ameritech maintains for those switches. For purposes of Ameritech routing traffic to Requesting Carrier, subtending arrangements between Requesting Carrier Primary Switches and Requesting Carrier Secondary Switches shall be the same as the access Tandem/End Office sub-tending arrangements which Requesting Carrier maintains for those switches.
4.2.4 Either Party may unilaterally reclassify its Central Office Switch as either a Primary Switch or Secondary Switch provided that such Party provides the other Party written notice thereof not less than one hundred and eighty (180) days prior to such reclassification.
Switching System Hierarchy. For purposes of routing AWS traffic to Verizon, the subtending arrangements between Verizon Tandem Switches and Verizon End Office Switches shall be the same as the Tandem/End Office subtending arrangements Verizon maintains for the routing of its own or other carriers’ traffic. For purposes of routing Verizon traffic to AWS, the subtending arrangements between AWS Tandem Switches (or functional equivalent) and AWS End Office Switches (or functional equivalent) shall be the same as the Tandem/End Office subtending arrangements (or functional equivalent) which AWS maintains for the routing of its own or other carriers’ traffic.
Switching System Hierarchy. 18 5.3 Trunk Group Architecture and Traffic Routing............. 19 5.4 Signaling................................................ 20 5.5
Switching System Hierarchy. 5.2.1 For purposes of this Section 5.0, each of the following Central Office Switches shall be designated as a "Primary Switch":
(a) Each Access Tandem Ameritech operates in the LATA;
(b) The initial switch Focal employs to provide Telephone Exchange Service in the LATA;
(c) Any Access Tandem Focal may establish for provision of Exchange Access in the LATA; and
(d) Any additional switch Focal may subsequently employ to provide Telephone Exchange Service in the LATA which Focal may at its sole option designate as a Primary Switch; provided that the total number of Focal Primary Switches for a LATA may not exceed the total number of Ameritech's Primary Switches for that LATA. To the extent Focal chooses to designate any additional switch as a Primary Switch, it shall provide notice to Ameritech of such designation at least ninety (90) days in advance of the date on which Focal activates such switch as a Primary Switch.
5.2.2 Each Central Office Switch operated by the Parties which is not designated as a Primary Switch pursuant to Section 5.2.1 shall be designated as a "Secondary Switch".
5.2.3 For purposes of Focal routing traffic to Ameritech, subtending arrangements between Ameritech Primary Switches and Ameritech Secondary Switches shall be the same as the Access Tandem/End Office sub-tending arrangements which Ameritech maintains for those switches. For purposes of Ameritech routing traffic Focal, subtending arrangements between Focal Primary Switches and Focal Secondary Switches shall be the same as the Access Tandem/End Office sub-tending arrangements which Focal maintains for those switches.
Switching System Hierarchy. 5.2.1 For purposes of this Section 5.0, each of the following Central Office Switches shall be designated as a "Primary Switch":
(a) Each Access Tandem BA operates in the LATA;
(b) The initial switch FOCAL employs to provide Telephone Exchange Service in the LATA; (c) Any Access Tandem FOCAL may establish for provision of Exchange Access in the LATA;
Switching System Hierarchy. 5.2.1 For purposes of this Section 5.0, each of the following Central Office Switches shall be designated as a "Primary Switch":
(a) Each Access Tandem NYNEX operates in the LATA;
(b) The initial switch XXXXXX FIBER employs to provide Telephone Exchange Service in the LATA;
(c) Any Access Tandem XXXXXX FIBER may establish for provision of Exchange Access in the LATA;
(d) Any additional switch XXXXXX FIBER may subsequently employ to provide Telephone Exchange Service in the LATA which XXXXXX FIBER may at its sole option designate as a Primary Switch; provided that the total number of XXXXXX FIBER Primary Switches for a LATA may not exceed the total number of NYNEX Primary Switches for that LATA. To the extent XXXXXX FIBER chooses to designate any additional switch as a Primary Switch, it shall provide notice to NYNEX of such designation at least ninety (90) days in advance of the date on which XXXXXX FIBER activates such switch as a Primary Switch; and
(e) Any additional tandem switch NYNEX may subsequently employ to provide access and/or sector traffic capacity within a LATA. Traffic destined to sub-tending Secondary Switches routed via such a tandem(s) would be determined by network requirements and notice made available to all LECs at least one hundred-eighty (180) days prior to service introduction.
Switching System Hierarchy. Either Party may deploy End Office switches, Tandem switches, or combination End Office Tandem switches as required to meet their respective network design requirements.
