E911 Trunk Group. 4.3.8.1 Attachment 05 - 911/E911 specifies E911 trunk group requirements.
E911 Trunk Group. 5.6.1 A dedicated trunk group for each NPA shall be established to each appropriate E911 switch within the local exchange area or LATA in which LEVEL 3 offers exchange service. LEVEL 3 will have administrative control for the purpose of issuing ASRs on this one-way trunk group. This trunk group shall be set up as a one-way outgoing only and will utilize XX XXXX signaling or, where available, SS7 signaling. Where the parties utilize SS7 signaling and the E911 network has the technology available, only one E911 trunk group shall be established to handle multiple NPAs within the local exchange area or LATA. If the E911 network does not have the appropriate technology available, a SS7 trunk group shall be established for each NPA in the local exchange area or LATA. LEVEL 3 shall provide a minimum of two (2) one- way outgoing channels on E911 trunks dedicated for originating E911 emergency service calls from the Point of Interconnection (POI) to the SBC- 13STATE E911 switch.