[cisco-voip] Calls dropping after 5 minutes

[jean-francois.guay at bell.ca]

Hi,
 
Since changing the gateways at a customer's site I am getting complaints
of some calls (IP to PSTN) going dead (no more voice) after 5 minutes.
Before they had the 6608-T1 blade in SCCP mode but now have 2x 2821 in
H323 mode with CCM3.3 (3.3 does not support the 2821 in any other way).
 
I am looking at the ACL but have not seen anything yet.
 
Any ideas?
 
 
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