07-05-2005 01:13 AM - edited 03-13-2019 09:41 AM
I have 2 call manager 3.3 in 2 seperate locations. Both sites are connected via a 256k leased line. Both site are using a CISCO 2611 series router.
Site A - Call manager 3.3 with 2 IP Phone 7960G
Site B - Call manager 3.3 with 80 IP Phone 7860G.
What i would greatly would like to accomplish is to make calls via the 256k WAN. I have read cisco's articles that this is possible, but am having trouble doing the configurations.
It would be of great help if someone could kindly guide me thru the steps to make this possible.
Your assistance is greatly appreciated.
07-05-2005 05:04 AM
I would assume that both of these sites are there own cluster? If so you can create Non-Gatekeeper Controlled InterCluster Trunks to point to one another, just make sure you have the proper QoS on the WAN setup.
Put the InterCluster Trunk in its own location thus you can limit how many calls can traverse the WAN because of your limited bandwidth. Also in your device pool you also would make them there own region thus you can say any calls going over that to be G.729 instead of G.711.
Look on CCO's site for creating an intercluster trunk, regions and locations. just make sure you have a MRGL for the device pool for the link that contains MTP so the calls coming over can be converted back to G.711 unless you make everything in your environment G.729.
Brian
07-07-2005 04:01 PM
Hi Brian,
Thanks for your information. I have managed to make calls but it seems more like a one way conversation. The other party can hear me loud and clear but i'm unable to hear anything from the other side.
Could you pls assist me on this. You assistance is appreciated very much indeed.
tQ
07-07-2005 05:04 PM
This is a good document for troubleshooting one-way audio.
http://www.cisco.com/en/US/tech/tk652/tk698/technologies_tech_note09186a008009484b.shtml
You can also try checking the MTP resources check box if this does not work.
The more detail of how you have your CCM's and network configured I will be able to assist further.
Do you have all your Media Resource groups configured?
Do you have the MRG's in MRGL's?
Do you have the MRGL in a device pool that not only the phones belong to but also the gateway?
How do you have your edge routers/voice gateway's configured.
etc..
HTH
07-07-2005 05:07 PM
oh! and since you are running 3.3, take a look at this phone load information.
http://www.cisco.com/en/US/products/sw/voicesw/ps556/products_field_notice09186a00801c96bd.shtml
07-10-2005 09:38 PM
Well, the router's configs are nothing special, the only line that i added to site B's router is like this :
voice rtp send-recv
voice service voip
h323
interface Serial0/0
description 256K
bandwidth 256
ip address 10.x.x.2 255.255.255.0
ip access-group 100 out
no ip redirects
no ip unreachables
no cdp enable
h323-gateway voip interface
h323-gateway voip id Site_B ipaddr 10.x.x.250 1718
dial-peer voice 1 voip
gateway.
Should i add the lines above to the other router as well? One router is : IOS (tm) C2600 Software (C2600-IS-M), Version 12.3(6b), RELEASE SOFTWARE (fc1)
The other one is : IOS (tm) C2600 Software (C2600-IO3S56I-M), Version 12.1(18), RELEASE SOFTWARE (fc1)
Would the IOS version difference make impact on the calls?
tQ for your time..
07-11-2005 06:16 AM
One other thing to check is to see if you have all servers from both clusters in the ICT config.
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide