Cisco Small Business SPA8000, Руководство по настройке

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| Cisco SPA8000 8-Port Telephony Gateway SIP Trunking Configuration Guide
FAX LINE(S) SETUP (CONT)
EMERGENCY (911) HUNT GROUP
Intermedia configures a unique 911 callback number per customer location. The
911 callback number is registered with our E911 provider. When Intermedia
receive a 911 call from the PBX, we forward the call to our E911 provider with
the registered 911 callback number as the CLI (regardless of what was passed
from the PBX). The 911 callback number is used by the Emergency responders
to call back to the location.
PBX/Gateway/Key System configuration must be setup to ensure that inbound
calls to the 911 callback number is routed to all phones or a designated subset
of phones in an emergency hunt group.