Solved: CCM 5.1 and H.323 GW registration problem

mizoran78 · ‎09-20-2007

Dear all,

I have CCM (v5.1.2 installation without DNS) and cisco 2811 (with ISDN PRI E1 trunk to PSTN) as a H323 GW, but 2811 doesn't seem to register with CCM.

In CCM I've configured router as H.323 type GW in the following way:

IP address/Device Name 10.0.9.10

Device Pool default

Call classification offNet

Location my_location

...the rest of parameters are default

The following is my 2811 config:

version 12.4

service timestamps debug datetime msec

service timestamps log datetime msec

no service password-encryption

!

hostname ISDN_GW

!

boot-start-marker

boot-end-marker

!

card type e1 0 0

no logging buffered

enable secret 5 *****************

!

aaa new-model

!

aaa authentication login Terminal local-case

aaa authentication enable default line enable

aaa authorization config-commands

aaa authorization exec Terminal local

!

aaa session-id common

!

resource policy

!

network-clock-participate wic 0

ip subnet-zero

!

ip cef

!

ip host publisher 10.0.9.1

ip host subscriber 10.0.9.2

ip host ISDN_GW 10.0.9.10

isdn switch-type primary-net5

!

voice-card 0

dspfarm

!

voice class codec 1

codec preference 1 g711ulaw

codec preference 2 g729r8

!

voice class h323 1

h225 timeout tcp establish 3

!

username admin privilege 15 password ***

!

controller E1 0/0/0

framing NO-CRC4

pri-group timeslots 1-31

!

interface FastEthernet0/0

ip address 10.0.9.10 255.255.255.224

duplex auto

speed auto

h323-gateway voip interface

h323-gateway voip id publisher ipaddr 10.0.9.1 1720

h323-gateway voip h323-id ISDN_GW

h323-gateway voip bind srcaddr 10.0.9.10

!

interface FastEthernet0/1

no ip address

shutdown

duplex auto

speed auto

!

interface Serial0/0/0:15

no ip address

isdn switch-type primary-net5

isdn incoming-voice voice

no cdp enable

!

ip classless

ip route 0.0.0.0 0.0.0.0 10.0.9.30

!

ip http server

no ip http secure-server

!

control-plane

!

voice-port 0/0/0:15

!

dial-peer voice 1000 voip

destination-pattern .T

voice-class codec 1

voice-class h323 1

session target ipv4:10.0.9.1

dtmf-relay h245-alphanumeric

no vad

!

gateway

timer receive-rtp 1200

!

line con 0

exec-timeout 60 0

logging synchronous

login authentication Terminal

transport output all

stopbits 1

line aux 0

exec-timeout 60 0

logging synchronous

login authentication Terminal

transport output all

line vty 0 4

exec-timeout 60 0

logging synchronous

login authentication Terminal

transport input telnet ssh

transport output all

line vty 5 15

exec-timeout 60 0

logging synchronous

login authentication Terminal

transport input telnet ssh

transport output all

!

scheduler allocate 20000 1000

ntp clock-period 17179861

ntp update-calendar

ntp server 10.0.9.1 source FastEthernet0/0 prefer

ntp server 10.0.25.1 source FastEthernet0/0 prefer

!

end

When I type show gateway, I get the following output

ISDN_GW#show gateway

H.323 ITU-T Version: 4.0 H323 Stack Version: 0.1

H.323 service is up

Gateway ISDN_GW is not registered to any gatekeeper

Alias list (CLI configured)

H323-ID ISDN_GW

Alias list (last RCF) is empty

H323 resource thresholding is Disabled

Does Cisco CallManager can act as an H.323 gatekeeper? If yes, how CCM should have to be configured for that purpose?

Can somebody point me out where I'm wrong?

TIA

Zoran Milenkovic

gogasca · ‎09-20-2007

Actually H323 GW dont register to CCM.

They act as peer to peer.

MGCP do register.

CCM cannot act as a GK.

We use Locations as a CAC mechanism.

View solution in original post

gogasca · ‎09-21-2007

Hi Zoran,

Dont worry about domains, you just add in CCM under Device H323 GWs.

And in the GW add dial-peers.

Please let me know what exactly you are trying to do.

View solution in original post

gogasca · ‎09-20-2007

Actually H323 GW dont register to CCM.

They act as peer to peer.

MGCP do register.

CCM cannot act as a GK.

We use Locations as a CAC mechanism.

mizoran78 · ‎09-20-2007

Dear gogasca!

Thanks for quick reply. Can you point me out how can I check out is everything ok with my config? Some debug command?

Also, I don't understand how to define H323 IDs of CCM and 2811 in no DNS service environment? The format of ID is email format, but I'm confused what would be my domain part since we have no defined domain?

TIA

Zoran Milenkovic

gogasca · ‎09-21-2007

Hi Zoran,

Dont worry about domains, you just add in CCM under Device H323 GWs.

And in the GW add dial-peers.

Please let me know what exactly you are trying to do.

mizoran78 · ‎09-23-2007

Hi

It's clear now! Thank you!

Obviously, I was pretty new to H.323 GWs and CCM. I was confused mainly by unknown status of H323 GW in CCM.

Now after your posts and few PDF books, I understand much better the relationship between CCM and H323 GW.

Also, I've realized that I don't need Gatekeeper nor DNS. My Fa0/0 is now configured this way:

!

interface FastEthernet0/0

ip address 10.0.9.10 255.255.255.224

duplex auto

speed auto

h323-gateway voip interface

h323-gateway voip bind srcaddr 10.0.9.10

!

My problem is probably in dial-peers, but I'll start the new thread as soon as I formulate a question.

BR

Zoran Milenkovic

jjenkins8655 · ‎09-21-2007

Are you experiencing a failure? I've never seen a H323 GW register to CCM. CCM doesn't act as a gatekeeper. An H323 GW doesn't need to "register" to CCM in the same way a MGCP GW does in order to work correctly. Hope that helps.