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New Member

2821 MGCP not registering with CCM 4.1

Hello, I am trying to get an E1 Q.sig up but the gateway just won't register with the Call Manager, here is the relevant config being used:

controller E1 0/0/0

pri-group timeslots 1-31 service mgcp

interface Serial0/0/0:15

no ip address

no logging event link-status

isdn switch-type primary-qsig

isdn incoming-voice voice

isdn bind-l3 ccm-manager

isdn bchan-number-order ascending

no cdp enable


mgcp call-agent 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 package-capability rtp-package

no mgcp package-capability res-package

mgcp package-capability sst-package

no mgcp package-capability fxr-package

no mgcp timer receive-rtcp

mgcp sdp simple

mgcp fax t38 inhibit

mgcp rtp payload-type g726r16 static


mgcp profile default

When issuing the show ccm-manager command I get this:

MGCP Domain Name:

Priority Status Host


Primary Registering with CM

First Backup None

Second Backup None

Current active Call Manager: None

Backhaul/Redundant link port: 2428

Failover Interval: 30 seconds

Keepalive Interval: 15 seconds

Last keepalive sent: 00:57:01 UTC May 13 2006 (elapsed time: 06:33:04)

Last MGCP traffic time: 07:29:44 UTC May 13 2006 (elapsed time: 00:00:21)

Last failover time: None

Last switchback time: None

Switchback mode: Graceful

MGCP Fallback mode: Not Selected

Last MGCP Fallback start time: None

Last MGCP Fallback end time: None

MGCP Download Tones: Disabled

Backhaul Link info:

Link Protocol: TCP

Remote Port Number: 2428

Remote IP Address:

Current Link State: OPEN


Packets recvd: 0

Recv failures: 0

Packets xmitted: 0

Xmit failures: 0

PRI Ports being backhauled:

Slot 0, port 0

Configuration Auto-Download Information


No configurations downloaded

Current state: Downloading XML file

Configuration Download statistics:

Download Attempted : 1

Download Successful : 0

Download Failed : 0

Configuration Attempted : 0

Configuration Successful : 0

Configuration Failed(Parsing): 0

Configuration Failed(config) : 0

Last config download command:

Configuration Error History:

FAX mode: cisco

and when debuging for mgcp packet I can see them comming and going:

*May 13 07:31:14.290: MGCP Packet sent to>

RSIP 78495923 * MGCP 0.1

RM: restart


*May 13 07:31:14.294: MGCP Packet received from>

500 78495923

I am kind of desesperate since everything seems to be fine, could anyone please give me a comment?

New Member

Re: 2821 MGCP not registering with CCM 4.1

can you post a screenshot of your CCM config?

i suspect that the MGCP name in CallManager is not

You should either remove the domain name in the gateway or make it correct and use the full name in the CCM configuration.


Please rate all helpful posts.
New Member

Re: 2821 MGCP not registering with CCM 4.1

That did it. Removing the domain name on the router allowed it to register inmmediattly.


New Member

Re: 2821 MGCP not registering with CCM 4.1

Great! Don't forget to rate posts.

Please rate all helpful posts.
New Member

Re: 2821 MGCP not registering with CCM 4.1


as in the previous post please paste the screen shot of CCM config and make sure you have updated entries in LMHOST...

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