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Wireless E911 Guide CG-EWCG-001
Network Specifications and Ordering Issue 3, January 6, 2004
3.2.2 Specification & Ordering Process: Option 2: Third Party Vendor Solution
The Wireless Carrier will be required to order a minimum of two (2), Type 2C, CAMA or SS7/ISUP
signaling trunks, connecting to the appropriate BellSouth E911 Tandem switch. If SS7 connectivity
will be used, refer to Appendix A of this guide.
If using CAMA signaling, the Wireless Carrier must be able to deliver to the BellSouth E911 Tandem
the two(2) stage CAMA MF signal required for interfacing directly with the appropriate BellSouth E911
Tandem switches. This signal is in the following format:
Stage 1: KP + 11 + ST
Stage 2: KP + Info Digit + 7 Digit ANI (p-ANI) + ST
These trunks are to be ordered through the BellSouth Wireless Account Team as an addendum to the
Wireless Carriers existing contract with BellSouth.
The Wireless Carrier is NOT required to order / purchase data link connections to the BellSouth ALI Host
computers when using this option. The connection to the ALI Host computers is handled by the provider of
the solution chosen by the Wireless Carrier. Wireless Carriers must work with Intrado to ensure the chosen
solution is compatible with the supported interfaces to the ALI Host computers. Wireless Carriers must
establish E2 connectivity between MPCs and the BellSouth ALI Host computers for Phase 2 as defined in
BellSouth Technical Reference TR73610, Issue 2.
3.3 Wireless Carrier Owned Hardware
If the Wireless Carrier chooses to purchase their own protocol conversion hardware as a means of achieving
Phase I Compliance, the specifications / ordering process will be as follows:
3.3.1 Trunking
The Wireless Carrier will be required to order a minimum of two (2), Type 2C, CAMA or SS7/ISUP
signaling trunks, connecting to the appropriate BellSouth E911 Tandem switch. If SS7 connectivity
will be used, refer to Appendix A of this guide.
The Wireless Carrier’s protocol conversion hardware must be able to deliver the two(2) stage CAMA
MF signal required for interfacing directly with the BellSouth E911 Tandem switch. This signal is in
the following format:
Stage 1: KP + 11 + ST
Stage 2: KP + Info Digit + 7 Digit ANI (p-ANI) + ST
These trunks are to be ordered through the BellSouth Wireless Account Team as an addendum to the
Wireless Carriers existing contract with BellSouth.
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