[cisco-voip] intercluster trunk over IPSec VPN

[Abebe Amare]

Dears,

I have configured an Inter-Cluster trunk from CUCM to another site with
CUCME. There is an IPSec L2L VPN terminating at ASA 5500 firewall on both
ends

CUCM --->ASA 5540--->Internet <---ASA 5510<---CUCME

On the ASA,the IPSec tunnel is terminated after 30 minute of inactivity
(default) which is causing a problem. When a phone in one site tries to
call another phone in the other site there is a noticeable gap before
actual conversation is heard over the phone. Once conversation starts,
there is no delay or break in audio. Has anyone faced this issue?

best regards,

Abebe
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