Signaling protocol The Parties will interconnect their networks using SS7 signaling where Technically Feasible and available as defined in GR 905 Telcordia Standards including ISDN User Part (ISUP) for trunk signaling and TCAP for CCS-based features in the Interconnection of their networks. All Network Operations Forum (NOF) adopted standards shall be adhered to. Where available, CenturyLink signaling services to link its Signaling Transfer Points (STPs) for CLEC switches which connect to CenturyLink’s STPs via “A” links or for CLEC’s STPs to connect to CenturyLink’s STPs via “D” links which are dedicated to the transport of signaling for local Interconnection, may be ordered from the CenturyLink Tariff.
Protocol The attached Protocol shall be an integral part of this Agreement.
Billing Unless otherwise provided in the Grant Agreement, Grantee shall bill the System Agency in accordance with the Grant Agreement. Unless otherwise specified in the Grant Agreement, Grantee shall submit requests for reimbursement or payment monthly by the last business day of the month following the month in which expenses were incurred or services provided. Grantee shall maintain all documentation that substantiates invoices and make the documentation available to the System Agency upon request.