[c-nsp] H323 Call Disconnection Problem

[Ahmad Mail-Lists]

We are using a 3725 at headoffice; This router is being used for porting
call legs via POTS/Dial-peers. T1's controller at this router is terminated
in a PBX. When call are originated via Channel Banks (TDM via on both
routers) - calls are successfully connected (via GRE Tunnels)

When we try connecting the pots via a soft phone (e.g. SJPhone) as a
H323 gateway, it connects the call but after like 2/3 seconds it disconnects
automatically and phone displays a "Temporary Failure"
error. Looking on to sniffing, we found Router is communicating correctly
with the soft phone PC and s sending H225 control messages successfully (so
doesn't seems any revert routing issue - all public hosts are accessible and
even all local hosts are fully able to communicate with this router and vice
versa). We have tried different working (TDM) ports on the router but they
don't work with H323.


logs are as followS:

debug h225 events
debug voip ccapi

*Oct 21 17:45:50.008: compose_TunnelledSignallingMessage_ciscoNo tunnelled
content.
Hex representation of the FACILITY TPKT to send.:
08029000621C002813636973636F2053797374656D732C20496E632E7E0040052690060008914A00048B53F47D2D98D04ABE3E9D0C9C4CF3388601001F01801100F7EF2A0B93CD994A9F94E71AD2728D5D0100010010C00180050103218002
h225FacilityRequest: Q.931 FACILITY sent from fd=4
*Oct 21 17:45:50.008: //4284/8B53F47DBE3E/CCAPI/cc_api_get_transfer_info:
   Transfer Number Is Null
*Oct 21 17:45:50.008: //4284/8B53F47DBE3E/CCAPI/ccConferenceDestroy:
   Conference Id=0x7B3, Tag=0x0
*Oct 21 17:45:50.008: //4284/xxxxxxxxxxxx/CCAPI/cc_api_bridge_drop_done:
   Conference Id=0x7B3, Source Interface=0x659FCB98, Source Call Id=4284,
   Destination Call Id=4285, Disposition=0x0, Tag=0x0
*Oct 21 17:45:50.008: //4285/xxxxxxxxxxxx/CCAPI/cc_api_bridge_drop_done:
   Conference Id=0x7B3, Source Interface=0x66174470, Source Call Id=4285,
   Destination Call Id=4284, Disposition=0x0, Tag=0x0
*Oct 21 17:45:50.012: //4284/8B53F47DBE3E/CCAPI/cc_generic_bridge_done:
   Conference Id=0x7B3, Source Interface=0x66174470, Source Call Id=4285,
   Destination Call Id=4284, Disposition=0x0, Tag=0x0
*Oct 21 17:45:50.012: //4284/8B53F47DBE3E/CCAPI/ccCallDisconnect:
   Cause Value=41, Tag=0x0, Call Entry(Previous Disconnect Cause=0,
Disconnect Cause=41)
*Oct 21 17:45:50.012: //4284/8B53F47DBE3E/CCAPI/ccCallDisconnect:
   Cause Value=41, Call Entry(Responsed=TRUE, Cause Value=41)
*Oct 21 17:45:50.012: //4284/8B53F47DBE3E/CCAPI/cc_api_get_transfer_info:
   Transfer Number Is Null
*Oct 21 17:45:50.012: //4285/8B53F47DBE3E/CCAPI/ccCallDisconnect:
   Cause Value=41, Tag=0x0, Call Entry(Previous Disconnect Cause=0,
Disconnect Cause=0)
*Oct 21 17:45:50.012: //4285/8B53F47DBE3E/CCAPI/ccCallDisconnect:
   Cause Value=41, Call Entry(Responsed=TRUE, Cause Value=41)
*Oct 21 17:45:50.012: //4285/8B53F47DBE3E/CCAPI/cc_api_get_transfer_info:
   Transfer Number Is Null
*Oct 21 17:45:50.012: h323chan_close: TCP connection from fd=4 closed
*Oct 21 17:45:50.012: //4284/8B53F47DBE3E/CCAPI/cc_api_call_disconnect_done:
   Disposition=0, Interface=0x64C4FB6C, Tag=0x0, Call Id=4284,
   Call Entry(Disconnect Cause=41, Voice Class Cause Code=0, Retry Count=0)
*Oct 21 17:45:50.012: //4284/8B53F47DBE3E/CCAPI/cc_api_call_disconnect_done:
   Call Disconnect Event Sent
*Oct 21 17:45:50.024: //4285/8B53F47DBE3E/CCAPI/cc_api_call_disconnect_done:
   Disposition=0, Interface=0x66174470, Tag=0x0, Call Id=4285,
   Call Entry(Disconnect Cause=41, Voice Class Cause Code=0, Retry Count=0)
*Oct 21 17:45:50.024: //4285/8B53F47DBE3E/CCAPI/cc_api_call_disconnect_done:
   Call Disconnect Event Sent


Please if someone can advise.