Nortel Networks 1000 - page 81

Features Page 81 of 910
IP Line Description, Installation and Maintenance
Call Server cold restart:
• A call is established between IP Phones A
and B registered with the same Call
Server.
• The Call Server cold restart (SYSLOAD)
occurs.
• The users of IP Phones A and B do not go
on-hook or press any keys during the Call
Server warm restart.
The call is not lost.
The call cannot be rebuilt after the SYSLOAD.
The PARTIAL REBUILT -> REBUILT
transition is almost instant since the Online
messages are sent in a group as a response
to the Sync Request.
Main office failure for branch office
(scenario 1):
• Branch IP Phones A and B register with the
Media Gateway 1000B and are re-directed
to the main office.
• IP Phones A and B registered with the
main office establish a call.
• A serious main office failure occurs. The
active Branch IP Phones cannot reregister
with the main office and reregister with the
branch office in local mode. IP Phone A
reregisters in local mode first.
The call is not lost.
The HALF REBUILT -> REBUILT transition
occurs since the far end is known to the Call
Server gateway to the Media Gateway 1000B.
Table 13
ACF behaviors (Part 3 of 8)
Scenario Result