2801 Gateway will not Register CM

Answered Question
Apr 17th, 2009

I am trying to add a gateway to my CM ver 6.1.2.1000-13. I set the MGCP 2801 Gatway in the CM and configure the router but it does not register. The router can communicate fine with the CM.

Router Info:

cm-manager mgcp

ccm-manager fax protocol cisco

ccm-manager music-on-hold

ccm-manager config server 172.16.101.5

ccm-manager config

!

mgcp

mgcp call-agent CCM01 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 package-capability fxr-package

no mgcp timer receive-rtcp

mgcp sdp simple

mgcp fax t38 ecm

no mgcp explicit hookstate

mgcp rtp payload-type g726r16 static

mgcp bind control source-interface Vlan169

mgcp bind media source-interface Vlan169

!

mgcp profile default

!

sccp local Vlan169

sccp ccm 172.16.101.5 identifier 1 version 6.0

sccp

!

sccp ccm group 1

bind interface Vlan169

associate ccm 1 priority 1

!

sh ccm-man

MGCP Domain Name: RONS_GW

Priority Status Host

============================================================

Primary Registering with CM CCM01 (172.16.101.5)

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: 09:42:39 NewYork Apr 17 2009 (elapsed time: 01:)

Last MGCP traffic time: 10:44:28 NewYork Apr 17 2009 (elapsed time: 00:)

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

TFTP retry count to shut Ports: 2

Configuration Auto-Download Information

=======================================

Current version-id: 1239893703-95f85d57-4795-4c67-83d6-8b7edf45a5e4

Last config-downloaded:00:00:00

Current state: Waiting for commands

Configuration Download statistics:

Download Attempted : 1

Download Successful : 1

Download Failed : 0

TFTP Download Failed : 0

Configuration Attempted : 1

Configuration Successful : 1

Configuration Failed(Parsing): 0

Configuration Failed(config) : 0

Last config download command: New Registration

FAX mode: cisco

Configuration Error History:

RONS_GW#sh ver

Cisco IOS Software, 2801 Software (C2801-ADVIPSERVICESK9-M), Version 12.4(22)T,)

Any ideas where to start ?

I have this problem too.
0 votes
Correct Answer by Nicholas Matthews about 5 years 4 days ago

Make sure that in CUCM you have the gateway defined like you see in this output:

"show ccm | i Domain Name"

As well, make sure you have 'isdn bind-l3 ccm' on your Serial 0/0/0:23 interface, and that your controller has 'pri-group time 1-24 service mgcp'.

If it's not a PRI then you should make sure the FXO/FXS port has 'service mgcpapp' under the dial-peer voice x pots dial peer.

Otherwise, check 'show voice port summary' and 'show voice call summary' to see if the port is in a bad state.

-nick

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Average Rating: 5 (4 ratings)
Jaime Valencia Fri, 04/17/2009 - 08:19

try changing this to IP

mgcp call-agent CCM01

make sure in CUCM it's hostname.domain.com if you have it configured in the router

try a no mgcp/mgcp

HTH

java

if this helps, please rate

Rob Huffman Fri, 04/17/2009 - 08:29

Hi Ron,

Just to add on to the great tips from Java (+5 points today Java - Happy Friday :)

The Domain name issue is outlined nicely in this doc;

MGCP Gateway Registration Failure with Cisco CallManager

http://www.cisco.com/en/US/products/sw/voicesw/ps556/products_tech_note09186a00805a316c.shtml#prob

If the IP domain name is configured in Cisco IOS on the MGCP gateway, enter the Fully Qualified Domain Name (FQDN) in the Domain Name field.

In the example: test and cisco.com represent the hostname and domain name respectively. If the IP domain name is not configured in Cisco IOS on the MGCP gateway, enter only the hostname of the MGCP gateway in the Domain Name field.

You would enter test.cisco.com (in CCM)

Hope this helps!

Rob

rarmitage@berge... Fri, 04/17/2009 - 09:49

Thanks for the help but it did not fix the problem. I confirmed that the gateway did not have a domain name and that the CCM01 did resolve in the right IP address.

Priority Status Host

============================================================

Primary Registering with CM CCM01 (172.16.101.5)

I then added a Domain name to both and it still would not register.

I know that the Gateway is resolving the host name to the right IP. How does the CM resolve the domain name back to the gateway?

I am using Call Manager Business Edition is there a limit to the number of Gateways that it can have. I have. I have seven H.323 gateways and I am trying to set up my second 2801 MGCP gateway?

I also restarted the Cisco RIS Data collector but it did not help.

iptuser55 Fri, 04/17/2009 - 10:33

Do a debug mgcp packets and then conf t no mgcp, mgcp

The debug commend will show the registeration process of the GW. If you see 200 response then the Hostname is ok if you see 500 check the hostname of the GW against the name in the GW config. in CCM. Also check whether you have ip domain-name? configured in the GW if so remove it

rarmitage@berge... Fri, 04/17/2009 - 11:28

This is the debug output and I am getting a 500. I changed the hostname in the GW to RONS and the Domain name to RONS but it did not change.

*Apr 17 19:25:32.063: MGCP Packet sent to 172.16.101.5:2427--->

RSIP 993904705 *@RONS MGCP 0.1

RM: restart

<---

*Apr 17 19:25:32.079: MGCP Packet received from 172.16.101.5:2427--->

500 993904705

<---

Correct Answer
Nicholas Matthews Fri, 04/17/2009 - 12:09

Make sure that in CUCM you have the gateway defined like you see in this output:

"show ccm | i Domain Name"

As well, make sure you have 'isdn bind-l3 ccm' on your Serial 0/0/0:23 interface, and that your controller has 'pri-group time 1-24 service mgcp'.

If it's not a PRI then you should make sure the FXO/FXS port has 'service mgcpapp' under the dial-peer voice x pots dial peer.

Otherwise, check 'show voice port summary' and 'show voice call summary' to see if the port is in a bad state.

-nick

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Posted April 17, 2009 at 7:49 AM
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