I have a problem with a BRI connection. On a 2901 VG I have a VIC2-2BRI-NT/TE configured like this:
no ip address
isdn switch-type basic-net3
isdn incoming-voice voice
isdn bind-l3 ccm-manager service mgcp
isdn static-tei 0
echo-cancel coverage 64
ccm-manager redundant-host 10.31.1.10
no ccm-manager fax protocol cisco
ccm-manager config server 10.31.1.10
mgcp call-agent 10.31.2.10 2427 service-type mgcp version 0.1
mgcp rtp unreachable timeout 1000 action notify
mgcp modem passthrough voip mode nse
mgcp package-capability rtp-package
mgcp package-capability sst-package
mgcp package-capability pre-package
no mgcp package-capability res-package
no mgcp timer receive-rtcp
mgcp sdp simple
mgcp fax t38 inhibit
mgcp profile default
dial-peer voice 10 pots
translation-profile incoming pstn-in
translation-profile outgoing pstn-out
progress_ind setup enable 3
progress_ind alert enable 8
progress_ind progress enable 8
progress_ind connect enable 8
progress_ind disconnect enable 8
dial-peer voice 11 pots
dial-peer voice 12 pots
dial-peer voice 13 pots
dial-peer voice 30 pots
incoming called-number 712399..
dial-peer voice 31 pots
Suddently we had problem on 1 of the 2 BRI connection, when we passed incoming calls we have only 1 ring tone and the call is dropped. In Q931 debug we have the following on BRI 0/0/0:
May 15 10:23:32.309: ISDN BR0/0/0 Q931: RX <- SETUP pd = 8 callref = 0x72
Bearer Capability i = 0x8090A3
Standard = CCITT
Transfer Capability = Speech
Transfer Mode = Circuit
Transfer Rate = 64 kbit/s
Channel ID i = 0x89
Calling Party Number i = 0x2183, '476630613'
Called Party Number i = 0xA1, '71239900'
High Layer Compat i = 0x9181
May 15 10:23:36.337: ISDN BR0/0/0 Q931: RX <- SETUP pd = 8 callref = 0x72
May 15 10:23:40.517: ISDN BR0/0/0 Q931: RX <- DISCONNECT pd = 8 callref = 0x72
Cause i = 0x82E6333033 - Recovery on timer expiry
Progress Ind i = 0x8288 - In-band info or appropriate now available
May 15 10:23:40.517: ISDN BR0/0/0 Q931: TX -> RELEASE_COMP pd = 8 callref = 0xF2
If I put the cable on BRI 0/0/1 the call succeeds. I check on this forum, and I already found the same answer about the timer. But here, both interfaces are configured in the same way, so what is your advice?
Since you are using MGCP, whaever you configuire on router doesn't matter.
MGCP for BRI works poorly, you should use H.323 or SIP instead.
I read many times on that forum MGCP "sucks" for BRI, but I'm allowed to change the configuration.
What is really strange, it was working and fine, and suddenly we had the problem.
Is it possible the case is a hardware problem ?
Try reloading router. That is also a good occasion to update IOS.
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