ASA phone proxy after failover problem

[f.mottini]

Dear all,

i have a problem with my asa phone proxy

i have two ASA 5520  in HA.

I have 10 phone register with ASA active primary.

if i execute the command

     show phone-proxy secure-session

i can see the phone session on the ASA.

if i perform the same command on the passive ASA i can't see the session replicated from the active member.

If i switch the cluster the phone enter in a registrating loop and can't connect to the ASA now active.

If i switch back immediately (the session are still present on the first asa) the phone register again and all works

the ASA have version 8.4(5)

the phone are a 7921g

is normal that the skinny don't start again and re-register the phone on the ASA that became active after failover?

can you help me?

thanks a lot

[Julio Carvajal]

Hello,

At the moment, ASA tls-proxy sessions and media sessions are not 
replicated to the standby unit. When a failover occurs, the endpoints 
registered with ASA phone proxy have to re-register with the active ASA. 
The audio will be lost.

The end user should be informed to reboot their phone when it becomes 
unregistered.