Avaya Nortel Communication Server 1000 Manual page 64

64 Features
Scenario
• Active IP Phones A and B re-register with the
system when the TLAN comes back up. IP
Phone A re-registers first and then IP Phone B.
Virtual Office logon failure (scenario 3):
• IP Phone A logs into IP Phone C and
establishes a call with IP Phone B. All three
IP Phones are registered with the same Call
Server.
• TLAN subnet failure occurs. IP Phones A and
B fail and IP Phone C does not fail.
• IP Phone C tries to log into its home TN before
IP Phones A and B go offline.
Network TLAN subnet failure
• IP Phone A has an IP Peer call with a remote
user over a virtual trunk.
• IP Phone A TLAN subnet connection fails.
• Active IP Phone A re-registers with the Call
Server when the TLAN subnet comes back up.
Network Call Server warm start
• IP Phone A has an IP Peer call with a remote
user over a virtual trunk.
•
The Call Server warm starts.
• Active IP Phone A re-registers with the Call
Server as the TLAN subnet comes back up.
Network Call Server cold start
• IP Phone A has an IP Peer call with a remote
user over a virtual trunk.
• The Call Server cold starts.
• Active IP Phone A re-registers with the Call
Server as the TLAN subnet comes back up.
Copyright © 2003–2008, Nortel Networks
.
Result
IP Phone C cannot log into its home TN if
another active IP Phone is logged on its TN.
IP Phone C can log into its home TN only
when the call register is released or becomes
PARTIAL REBUILT.
See
Virtual Office login failure (scenario
The call is not lost.
The scenario is the same as if the far end were
a local IP Phone. See
The call is not lost.
The scenario is the same as if the far end
were a local IP Phone. See
restart.
The call is lost as the Call Server comes up.
Nortel Communication Server 1000
IP Line Fundamentals
NN43100-500 02.02 Standard
Release 5.5 4 February 2008
Virtual Office login failure (scenario 1)
TLAN subnet
and
2).
failure.
Call Server warm