MGCP Registration issue..unable to configure isdn bind-l3 ccm-manaer

Unanswered Question
Mar 12th, 2009


I am having an issue with mgcp registration.

On the serial port..I am unable to configure the isdn bind-l3 ccm-manager command. The iso version is


All that is available is isdn bind-l3 q931/q921.

When I issue a sh ccm-manager, the gateway shows evrything as registered.

The output of sh ccm-manager is below

OCVG01#sh ccm-manager

MGCP Domain Name:

Priority Status Host


Primary Registered

First Backup Backup Ready

Second Backup None

Current active Call Manager:

Backhaul/Redundant link port: 2428

Failover Interval: 30 seconds

Keepalive Interval: 15 seconds

Last keepalive sent: 11:06:41 gmt Mar 12 2009 (elapsed time: 00:00:05)

Last MGCP traffic time: 11:06:41 gmt Mar 12 2009 (elapsed time: 00:00:05)

Last failover time: 10:56:14 gmt Mar 12 2009 from (

Last switchback time: 10:56:29 gmt Mar 12 2009 from (

Switchback mode: Graceful

MGCP Fallback mode: Not Selected

Last MGCP Fallback start time: None

Last MGCP Fallback end time: None

MGCP Download Tones: Disabled

TFTP retry count to shut Ports: 2

FAX mode: cisco

Configuration Error History:


Mar 12 11:06:56.133: MGCP Packet sent to>

NTFY 767469129 [email protected] MGCP 0.1

X: 0



Mar 12 11:06:56.133: MGCP Packet received from>

200 767469129


Also a debug mgcp packet gives me a response code of 200..which shows evrything is fine...

However On callmanager the status shows as unregistered.

The setup is as follows


When I used h.323 on the gateway evrything works.

Here is a the mgcp config

ccm-manager redundant-host

ccm-manager mgcp

ccm-manager music-on-hold

ccm-manager config server



mgcp call-agent service-type mgcp version 0.1

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

mgcp bind control source-interface Loopback0

mgcp bind media source-interface Loopback0


mgcp profile default

interface Serial0/0/0:15

no ip address

encapsulation hdlc

isdn switch-type primary-qsig

isdn overlap-receiving

isdn incoming-voice voice

isdn contiguous-bchan

no cdp enable

I have this problem too.
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