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intercluster trunk in callmanager 3.3(4)

Hi,

1.Two sites connected by leased line of 256Kbps, Hence I have 2600XM modular routers at each

site.

2.Cisco Callmanager 3.3(4) at each site.

3.IP phones cisco 7960 are connected to cat 3550 switches with trunking

4.There is intercluster trunking without gatekeeper between two cisco callmanagers.

Note: only one call manager at each site no redunadant callmangers.

5.IP phone to IP phone communication is working at each site locally.

6. When I call from a Ip phone at one site to Ip phone at other site its not working, this

is same case with either site.

7. I see in my gateway routers configuration a statements

Site 1:

=======

voice-card 1

!

no aaa new-model

ip subnet-zero

ip rcmd rsh-enable

ip rcmd remote-host remote-user 10.45.2.254 local-user enable

ip cef

!

voice service voip

h323

!

!

interface Serial0/1

description 256K link to site2

bandwidth 256

ip address 10.44.0.2 255.25

ip access-group 100 out

no ip redirects

no ip unreachables

no cdp enable

h323-gateway voip interface

h323-gateway voip id SITE1 ipaddr 10.45.100.250 1718

!

!

dial-peer voice 1 voip

!

gateway

!

!

Site 2:

=======

voice-card 1

!

no aaa new-model

ip subnet-zero

no ip source-route

ip cef

!

voice service voip

h323

!

!

interface Serial0/0

description 256K link to SITE1

bandwidth 256

ip address 10.44.0.1 255.255.255.0

ip broadcast-address 10.44.0.255

ip access-group 100 in

no ip redirects

no ip unreachables

ip accounting access-violations

fair-queue

no cdp enable

h323-gateway voip interface

h323-gateway voip id SITE2 ipaddr 10.0.0.47 1718

!

!

dial-peer voice 1 voip

!

gateway

!

!

------------------------------------

8. what configuration should be in voice gateway routers at each site

when we use intercluster trunk.?

9. How does callmanger or gateway (router 2600) bind/register with

each other to make call routing.?

10. I have seen some technotes MGCP must be enabled in gateway to bind

to callmanger in FXS/FXO environment.. but my setup is intercluster

trunk without gatekeeper.

11. Do I need to use MGCP in case of H323, if so how do I use it.?

Note:- I dont have any gatekeeper mechanisim

....Please guide me how do I bring up this IP Phone communication.....

Regards,

Kishore

1 REPLY
Blue

Re: intercluster trunk in callmanager 3.3(4)

Intercluster trunks do not require router gateways. You just need IP connectivity, and QOS, between the 2 clusters.

Do you have route patterns defined pointing to the trunk (or route list containing the trunk in a route group)?

http://www.cisco.com/en/US/products/sw/voicesw/ps556/products_administration_guide_chapter09186a00801f00f2.html#wp92886

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