I've got a very vexing issue. I converted a router over from MGCP to h.323. IOS Advanced IP Services 152.4M6 With MGCP to H323
there was never an issue :
1. Intermittent call drop outs
Can you please send us the actual config of your H323 VG?
Thanks for the configuration.
Can you also please send a show controller E1 and a debug isdn q931 during an incoming call with a termination delay?
Sep 3 09:47:54.537: ISDN Se0/0/0:15 Q931: RX <- SETUP pd = 8 callref = 0x00FC
Bearer Capability i = 0x8090A3
Standard = CCITT
Transfer Capability = Speech
Transfer Mode = Circuit
Transfer Rate = 64 kbit/s
Channel ID i = 0xA18382
Preferred, Channel 2
Calling Party Number i = 0x2183, '63451244'
Called Party Number i = 0xC1, '94556667'
Sep 3 09:47:54.537: ISDN Se0/0/0:15 Q931: Received SETUP callref = 0x80FC callID = 0x099F switch = primary-net5 interface = User
Sep 3 09:47:54.541: ISDN Se0/0/0:15 Q931: TX -> CALL_PROC pd = 8 callref = 0x80FC
Channel ID i = 0xA98382
Exclusive, Channel 2
Sep 3 09:47:54.757: ISDN Se0/0/0:15 Q931: TX -> ALERTING pd = 8 callref = 0x80FC
Sep 3 09:47:55.781: ISDN Se0/0/0:15 Q931: TX -> CONNECT pd = 8 callref = 0x80FC
Sep 3 09:47:55.797: ISDN Se0/0/0:15 Q931: RX <- CONNECT_ACK pd = 8 callref = 0x00FC
Sep 3 09:48:03.245: ISDN Se0/0/0:15 Q931: RX <- PROGRESS pd = 8 callref = 0x9151
Cause i = 0x8A9F - Normal, unspecified
Progress Ind i = 0x8488 - In-band info or appropriate now available
Sep 3 09:48:08.921: ISDN Se0/0/0:15 Q931: RX <- DISCONNECT pd = 8 callref = 0x00FA
Cause i = 0x8090 - Normal call clearing
Progress Ind i = 0x8288 - In-band info or appropriate now available
Sep 3 09:48:08.921: ISDN Se0/0/0:15 Q931: call_disc: PI received in disconnect; Postpone sending RELEASE for callid 0x99D
From this debug I can see that the call has been disconnected immediately.
Can you confirm it?
please also add these to commands in your config
voice call disc-pi-off
voice call convert-discpi-to-prog
Let me know
and also do you think we remove the " service mcid" will help ?
dial-peer voice 1 pots
description **** Inbound Calls****
incoming called-number .
That could help
Regarding voice call convert-discpi-to-prog is to change the diconnect message to progress in order to try to send the call status to the CUCM when a disconnect arrives from PSTN
thanks a lot .
and also maybe I will try change this above timer "param mcid-release-timer" to 10 seconds instead of 30seconds and then see whether now the calls disconnect after 10seconds, which confirms that the issue is with MCID.