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New Member

Recovery on timer expiry

Hi Guys,

I have a problem with a BRI connection. On a 2901 VG I have a VIC2-2BRI-NT/TE configured like this:

!

interface BRI0/0/0

no ip address

isdn switch-type basic-net3

isdn point-to-point-setup

isdn incoming-voice voice

isdn bind-l3 ccm-manager service mgcp

isdn static-tei 0

!

interface BRI0/0/1

no ip address

isdn switch-type basic-net3

isdn point-to-point-setup

isdn incoming-voice voice

isdn bind-l3 ccm-manager service mgcp

isdn static-tei 0

!

!

voice-port 0/0/0

echo-cancel coverage 64

compand-type a-law

cptone BE

!

voice-port 0/0/1

echo-cancel coverage 64

compand-type a-law

cptone BE

!

ccm-manager fallback-mgcp

ccm-manager redundant-host 10.31.1.10

ccm-manager mgcp

no ccm-manager fax protocol cisco

ccm-manager music-on-hold

ccm-manager config server 10.31.1.10 

ccm-manager config

!

mgcp

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

preference 1

destination-pattern 0T

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

direct-inward-dial

port 0/0/0

forward-digits all

!

dial-peer voice 11 pots

translation-profile incoming pstn-in

translation-profile outgoing pstn-out

preference 1

destination-pattern 1T

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

direct-inward-dial

port 0/0/0

forward-digits all

!

dial-peer voice 12 pots

translation-profile incoming pstn-in

translation-profile outgoing pstn-out

preference 2

destination-pattern 0T

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

direct-inward-dial

port 0/0/1

forward-digits all

!

dial-peer voice 13 pots

translation-profile incoming pstn-in

translation-profile outgoing pstn-out

preference 2

destination-pattern 1T

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

direct-inward-dial

port 0/0/1

forward-digits all

!

dial-peer voice 30 pots

translation-profile incoming pstn-in

translation-profile outgoing pstn-out

incoming called-number 712399..

direct-inward-dial

port 0/0/0

!

dial-peer voice 31 pots

translation-profile incoming pstn-in

translation-profile outgoing pstn-out

preference 1

incoming called-number 712399..

direct-inward-dial

port 0/0/1

!

!

!

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

Sending Complete

Bearer Capability i = 0x8090A3

Standard = CCITT

Transfer Capability = Speech 

Transfer Mode = Circuit

Transfer Rate = 64 kbit/s

Channel ID i = 0x89

Exclusive, B1

Calling Party Number i = 0x2183, '476630613'

Plan:ISDN, Type:National

Called Party Number i = 0xA1, '71239900'

Plan:ISDN, Type:National

High Layer Compat i = 0x9181

May 15 10:23:36.337: ISDN BR0/0/0 Q931: RX <- SETUP pd = 8  callref = 0x72

Sending Complete

Bearer Capability i = 0x8090A3

Standard = CCITT

Transfer Capability = Speech 

Transfer Mode = Circuit

Transfer Rate = 64 kbit/s

Channel ID i = 0x89

Exclusive, B1

Calling Party Number i = 0x2183, '476630613'

Plan:ISDN, Type:National

Called Party Number i = 0xA1, '71239900'

Plan:ISDN, Type:National

High Layer Compat i = 0x9181

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?

Thanks,

Hervé Jacquemin

Everyone's tags (3)
3 REPLIES
Hall of Fame Super Gold

Recovery on timer expiry

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.

New Member

Recovery on timer expiry

Hi Paolo,

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 ?

Hall of Fame Super Gold

Recovery on timer expiry

Try reloading router. That is also a good occasion to update IOS.

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