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H.323 Gateway not registering in CCM4.1.2

After configuring the router i have add the device as a H.323 gatway CCM deducted IP address of Router but Registration is :UNKNOWN.

If anyone configured h.323 gateway in CCM4.1.2 please send me the information.

=========================================CISCO ROUTER 2620 CONFIGURATION


service timestamps debug uptime

service timestamps log uptime

hostname nafay

ip subnet-zero

call rsvp-sync

voice class h323 1

h225 timeout tcp establish 3

interface FastEthernet0/0

ip address

duplex auto

speed auto

interface Serial0/0

no ip address


ip classless

ip http server

voice-port 1/0/0

voice-port 1/0/1

voice-port 1/1/0

voice-port 1/1/1

dial-peer cor custom

dial-peer voice 100 voip

preference 1

destination-pattern 1...

voice-class h323 1

session target ipv4:

dtmf-relay h245-alphanumeric

ip precedence 5

dial-peer voice 101 voip

preference 2

destination-pattern 1...

session target ipv4:

dtmf-relay h245-alphanumeric

ip precedence 5

line con 0

line aux 0

line vty 0 4




nafay#sh ver

Cisco Internetwork Operating System Software

IOS (tm) C2600 Software (C2600-JS-M), Version 12.2(31), RELEASE SOFTWARE (fc2)

Technical Support:

Copyright (c) 1986-2005 by cisco Systems, Inc.

Compiled Thu 11-Aug-05 17:24 by tinhuang

Image text-base: 0x8000808C, data-base: 0x814710D8

ROM: System Bootstrap, Version 11.3(2)XA4, RELEASE SOFTWARE (fc1)

ROM: C2600 Software (C2600-JS-M), Version 12.2(31), RELEASE SOFTWARE (fc2)

nafay uptime is 3 minutes

System returned to ROM by power-on

System image file is "flash:c2600-js-mz.122-31.bin"

cisco 2620 (MPC860) processor (revision 0x102) with 61440K/4096K bytes of memory


Processor board ID JAD042701EE (1286926306)

M860 processor: part number 0, mask 49

Bridging software.

X.25 software, Version 3.0.0.

SuperLAT software (copyright 1990 by Meridian Technology Corp).

TN3270 Emulation software.

1 FastEthernet/IEEE 802.3 interface(s)

1 Serial network interface(s)

4 Voice FXO interface(s)

32K bytes of non-volatile configuration memory.

16384K bytes of processor board System flash (Read/Write)

Configuration register is 0x2102



New Member

Re: H.323 Gateway not registering in CCM4.1.2


For H.323 gateway, the call manager will always show the registration status as UNKNOWN. There is nothing wrong and its a known behaviour.




Re: H.323 Gateway not registering in CCM4.1.2


It is normal and expected for the registration status of an H.323 gateway to remain 'unknown'. Are you not able to place and receive calls through this gateway?

New Member

Re: H.323 Gateway not registering in CCM4.1.2

Thanks for the reply

Yes i am unable to receive and make call from Ip phones.

New Member

Re: H.323 Gateway not registering in CCM4.1.2

Current Setup:

Internet=>Netgear Modem=>Pix501=>Inside network (were ccm-, 2620 gateway- and IP phones- in the network)

I have tried with MGCP gatway atleast bell was ringing on ip phone but unable to hear vice versa.


Re: H.323 Gateway not registering in CCM4.1.2


We are missing some information about your router but I will try to make some educated guesses.

If some or all of your gateway's voice-ports are FXO ports and connected to regular phones lines from your local phone company, you need to configure them to ring at a particular directory number on your CallManager system. The best way to do this is with the 'connection plar XXXX' command under the FXO voice-port configuration, where XXXX is the number of one of your IP phones. The number needs to be routable via one of your configured dial-peers. Right now they are configured to match all four-digit numbers starting with 1, so it needs to start with 1 (or your dial-peers need to be fixed, or added to). When this is done, if you call the outside phone number of one of those phone lines, the gateway will try to forward the call to your CallManager's IP address as specified in the dial peer.

The H.323 gateway needs to be configured on the CallManager side with a proper CSS (Calling Search Space) that can see the partition you've placed your phone's directory numbers in. If your phone DNs are in the Null partition (none at all), this is not strictly necessary.

In order to dial out via your FXO lines, you'll need a route pattern on CallManager, such as 9.@. This needs to be pointed directly at your H.323 gateway, or optionally, at a route list which contains a route group of which your H.323 gateway is a member. Then, your gateway will need extra dial-peers that look something like this:

dial-peer voice 200 pots

preference 1

destination-pattern 9T

port 1/0/0

dial-peer voice 201 pots

preference 2

destination-pattern 9T

port 1/0/1

I note you have your two voip dial-peers set up in a manner usually used for two-CallManager failover scenarios, but you are using the same IP address on both. If you have two CallManagers, you should change the IP address on one of the dial peers, preferably having (a/the) subscriber CallManager first with preference 1.

If you do not have FXO lines connected to your telephone company, we will need some more information on exactly what you're trying to accomplish with this gateway. You should also collect the output of 'show ver' and 'show diag' in a file and attach that to your reply.

New Member

Re: H.323 Gateway not registering in CCM4.1.2

Thanks for your reply I have followed your instructions still same problem.

I am testing this in my home. PSTN line is directly connected to one of the FXO port. When i dial the number it not ringing on IP phone. I have assign DN of IPPhone in H.323 gateway configuration.

When i press 9 on IP phone i am getting dial tone after dial tone when i dial the outside number it not connecting.

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