Description of Service

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The control office for Emergency 911 service is assigned in accordance with the existing standard guidelines to one of the following centers: o Special Services Center (SSC)

o Major Accounts Center (MAC)

o Serving Test Center (STC)

o Toll Control Center (TCC)

The SSC/MAC designation is used in this document interchangeably for any of these four centers. The Special Services Centers (SSCs) or Major Account Centers (MACs) have been designated as the trouble reporting contact for all E911 customer (PSAP) reported troubles. Subscribers who have trouble on an E911 call will continue to contact local repair service (CRSAB) who will refer the trouble to the SSC/MAC, when appropriate.

Due to the critical nature of E911 service, the control and timely repair of troubles is demanded. As the primary E911 customer contact, the SSC/MAC

is in the unique position to monitor the status of the trouble and insure its resolution.