Avaya Communication Manager Administrator's Manual page 1186

Screen Reference
Station
Valid entries
block
cesid
option
Restrict Last Appearance
Valid entries
y/n
1186
Usage
Enter block to prevent the completion of emergency calls. Use this
entry for users who move around but always have a
circuit-switched phone nearby, and for users who are farther away
from the media server or switch than an adjacent area code served
by the same 911 Tandem office.
When users attempt to dial an emergency call from an IP
Telephone and the call is blocked, they can dial 911 from a nearby
circuit-switched phone instead.
Enter cesid to allow Communication Manager to send the CESID
information supplied by the IP Softphone to the PSAP. The end
user enters the emergency information into the IP Softphone.
Use this entry for IP Softphones with road warrior service that are
near enough to the media server or switch that an emergency call
routed over the it's trunk reaches the PSAP that covers the server or
switch.
If the media server or switch uses ISDN trunks for emergency calls,
the digit string is the telephone number, provided that the number is
a local direct-dial number with the local area code, at the physical
location of the IP Softphone. If the media server or switch uses
CAMA trunks for emergency calls, the end user enters a specific
digit string for each IP Softphone location, based on advice from
the local emergency response personnel.
Enter option to allow the user to select the option (extension,
block, or cesid) that the user selected during registration and the IP
Softphone reported. Use this entry for extensions that may be
swapped back and forth between IP Softphones and a phone with a
fixed location.
The user chooses between block and cesid on the softphone. A
DCP or IP phone in the office automatically selects extension.
Usage
Enter y to restrict the last idle call appearance for incoming priority
calls and outgoing call originations only.
Administrator's Guide for Avaya Communication Manager
November 2003