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I think I got a Progress Indicator prob??

aamercado
Level 4
Level 4

HI

413sr1 2CM (pub/sub cluster) w/ H323 GW 12.3.14T

outbound calls are fine but inbound has the following problem:

1. When I setup my dial-peers to prefer the pub, all in/out works fine

2. When I change the preference command to prefer the sub, inbound pstn caller keeps hearing ringback AFTER ip phone answers. Ringback continues for 2-4 rings and disconnects. In the meantime, ip phone is dead air but LCD screen shows "Connected." Outbound calls are fine so it's just inbound issue

The 2 dial-peers pointing respectively to pub and sub are basically the same other than the "preference" command so not sure what's going on.

Thanks

1 Reply 1

scott.searle
Level 1
Level 1

Do you have a firewall between your gateway and ccm? I ran into this issue and the solution was to add the following global command 'ip tcp path-mtu-discovery' to the voice gateway. It seems that for some reason all the H225 packets were fragmented and getting lost traversing the FWSM to the CCM.

Hope this helps.