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PRI T1 MGCP or H323 ? When connecting to CCM 3.2.2c

The PRi is connected to IOS 3640 gateway, I have configured several H323 gateways, with IOS 12.2.11T, the ios seems stable enough to run the PRI, I also have the HDA-FXS/FXO module which is configured via MGCP in the same router. I am running in to registration issues with the PRI, and thinking of resorting back to H323 for this T1.

Regards

TAR

3 REPLIES
New Member

Re: PRI T1 MGCP or H323 ? When connecting to CCM 3.2.2c

If you are using BRI, then it is not supported by MGCP still.

But if you are using it as PRI, then I guess it should work.

Check it out.

New Member

Re: PRI T1 MGCP or H323 ? When connecting to CCM 3.2.2c

This works fine either way. I have had success using MGCP to control the PRI. Do you have the PRI configured for backhaul ISDN support? You need to let MGCP configure the ISDN, not the router. Sorry I don't have an example config, but there is a new tech document on CCO that covers this config along with MGCP fall-back. Fallback works fine as well, and you can now have the router pull a TFTP config for the voice functions after it boots.

The document I am refering to addresses troubleshooting for registration problems.

New Member

Re: PRI T1 MGCP or H323 ? When connecting to CCM 3.2.2c

I use the same IOS with MGCP and E1in France, and all is working fine. Here's the configuration :

ccm-manager redundant-host X.X.X.X

ccm-manager mgcp

ccm-manager music-on-hold

ccm-manager config server X.X.X.X

!

controller E1 2/0

framing NO-CRC4

pri-group timeslots 1-31 service mgcp

!

controller E1 2/1

framing NO-CRC4

pri-group timeslots 1-16 service mgcp

!

interface Serial2/0:15

no ip address

no logging event link-status

isdn switch-type primary-net5

isdn incoming-voice voice

isdn bind-l3 ccm-manager

no cdp enable

!

interface Serial2/1:15

no ip address

no logging event link-status

isdn switch-type primary-net5

isdn incoming-voice voice

isdn bind-l3 ccm-manager

no cdp enable

voice-port 2/0:15

!

voice-port 2/1:15

!

mgcp

mgcp call-agent X.X.X.X 2427 service-type mgcp version 0.1

mgcp dtmf-relay voip codec all mode out-of-band

mgcp rtp unreachable timeout 1000 action notify

mgcp modem passthrough voip mode nse

mgcp modem passthrough voip codec g711alaw

mgcp modem passthrough voip redundancy

mgcp package-capability mf-package

mgcp package-capability rtp-package

mgcp package-capability sst-package

no mgcp timer receive-rtcp

mgcp timer net-cont-test 3000

mgcp sdp simple

!

mgcp profile default

!

dial-peer cor custom

!

!

!

dial-peer voice 9992015 pots

application mgcpapp

port 2/0:15

!

dial-peer voice 9992115 pots

application mgcpapp

port 2/1:15

!

Malik.

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