Chapter 8: Troubleshooting; Limited Access During Failover - Avaya J169 Using Instructions

Chapter 8: Troubleshooting

Limited access during failover

One or more telephone system servers provide your phone with its connectivity, features, and
functionality. If a disconnect or switch from one server to another occurs, your phone goes into
failover mode to keep it operating while alternate server resources are established. Depending on
the server your phone is on, an icon may appear on the Top display line (status bar) notifies you
that failover is in effect.
Failover has different stages. For example, while your phone transitions to a new server it is in
limbo state and it has limited functionality. When the alternate server is active, your phone
assumes the functionality available on that server, which might not be the same as your original
server. When the original server is restored, your phone transitions back, and functionality might
again be limited during the transition. When your phone is back on the original server, normal
functionality is restored. Failover and failback are automatic; you have no control over failure
mode.
Keep in mind that during failover certain features may not be available and telephone functionality
might be limited. Check the soft keys at the bottom of the display to determine the actions you can
take during failover. You can also press the Phone button to display the for possible actions.
Important:
Do not log your telephone off during failover or until normal service is restored on your original
telephone server. Logging off during failover, during transition to or from an alternate server, or
while your phone is active on an alternate server may cause your phone to become
inoperable.
The following conditions apply when your telephone is in Failover mode:
• If you are on a call when failover occurs, the call remains active. You cannot initiate new calls
while your phone transitions to the alternate server.
• The phone does not display certain soft keys and their related functions may be unavailable
until transition to the alternate server is complete.
• Call connection may take longer than usual.
• During the transition to a new server, any active conference calls, call transfers, and held
calls may be dropped. Incoming calls might not reach you and can go to voice mail.
• Emergency calls might or might not work, depending on the stage of failover and the
functionality available on the alternate server.
April 2022 Using Avaya J169/J179 IP Phone H.323
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