Nortel 1120E Administration Manual page 51

The IP Phone 1120E with SIP Firmware uses a dialing plan to recognize a
call as an emergency call when it sends an INVITE. The dialing plan can
have multiple emergency numbers. See the chapter
Operator control of disconnect" (page 99)
Emergency 911 calls by the IP Phone 1120E with SIP firmware.
The following is an example of a dialing plan.
Figure 6
Sample dialing plan
Copyright © 2008, Nortel Networks
.
Create the Dialing Plan file on the provisioning server 51
SIP Firmware Release 1.1 for IP Phone 1120E Administration
NN43112-300 02.03 Standard
for information on the handling of
27 May 2008
"Emergency 911 -