MGCP Gateway Unregistered

Unanswered Question
Sep 7th, 2008
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Hi Netpro again.... i have problems whit MGCP gateway

the mgcp gw config is:

hostname gwcsm02


card type e1 0 0

card type e1 0 1


no aaa new-model

network-clock-participate wic 0

network-clock-participate wic 1

network-clock-select 1 E1 0/0/0

network-clock-select 2 E1 0/0/1


ip domain name

isdn switch-type primary-5ess


voice-card 0


no local-bypass


controller E1 0/0/0

framing NO-CRC4

pri-group timeslots 1-31 service mgcp


controller E1 0/0/1


controller E1 0/1/0


controller E1 0/1/1


interface GigabitEthernet0/0

ip address

duplex auto

speed auto



interface Serial0/0/0:15

no ip address

encapsulation hdlc

isdn switch-type primary-qsig

isdn incoming-voice voice

isdn bind-l3 ccm-manager

no cdp enable


ip default-gateway

ip forward-protocol nd

ip route


voice-port 0/0/0:15


ccm-manager redundant-host

ccm-manager mgcp

ccm-manager music-on-hold

ccm-manager config server

ccm-manager config



mgcp call-agent 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 rtp payload-type g726r16 static


mgcp profile default


gwcsm02#show 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: 00:09:08 UTC Sep 7 2008 (elapsed time: 00:00:13)

Last MGCP traffic time: 00:09:08 UTC Sep 7 2008 (elapsed time: 00:00:13)

Last failover time: 00:03:08 UTC Sep 7 2008 from (

Last switchback time: 00:03:53 UTC Sep 7 2008 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

Backhaul Link info:

Link Protocol: TCP

Remote Port Number: 2428

Remote IP Address:

Current Link State: OPEN


Packets recvd: 2

Recv failures: 0

Packets xmitted: 2

Xmit failures: 0

PRI Ports being backhauled:

Slot 0, VIC 0, port 0

Configuration Auto-Download Information


Current version-id: 1220763521-47cc5630-9dc4-4f61-8bc4-da484f637ca3

Last config-downloaded:00:00:00

Current state: Waiting for commands

Configuration Download statistics:

Download Attempted : 2

Download Successful : 2

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

Configuration Error History:

controller E1 0/0/0

no pri-group timeslots 1-31

FAX mode: cisco

but in the CUCM 6.1 endpoint

Product Cisco MGCP E1 Port


Device Protocol PRI de acceso digital

Registration Unregistered

IP Address

End-Point Name Required Field S0/SU0/[email protected]

I have read several papers Media Gateway Control Protocol but the truth is not that still appears as the CUCM Unregistered


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Chris Deren Sun, 09/07/2008 - 07:43
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Do you have the actual circuit plugged in? It will show unregistered until it detects carrier detect.


Marwan ALshawi Sun, 09/07/2008 - 08:05
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have u issued no shutdown under

controller E1 0/0/0 ?!

jmecklenburg Sun, 09/07/2008 - 08:31
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the controller e1 0/0/0 is up....

if i restart the GW in the CUCM 6.1 the GW down and up the e1 channels

jmecklenburg Sun, 09/07/2008 - 09:31
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Thanks, plug the E1 loop and the CUCM register the endpoint


cg100668 Tue, 09/09/2008 - 03:27
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Hi, it looks like the gateway name defined in CUCM is different to the host name of the voice gateway. Please change it and see if the MGCP gateway will register.


ahmed_mohammedy Wed, 09/10/2008 - 03:41
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Please try to use

no ip domain name

on the global configuration of the MGCP GW

best regards;



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