How let GK route calls to CM ip phones with "static alias" command

Unanswered Question
Jul 9th, 2008

I made a h.225 trunk from CM to GK.This trunk not allowed to register to GK with tech-prefix.

Also i have not default-tech

I need to add CM ip phones static with "alias static" command .

Calls from CM to CME success BUT calls from CME to CM fail even i got from debugs that dialed digits successfully resolved.

What is the problem plz give configuration exampls

I have this problem too.
0 votes
  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
youssef.ahmed Wed, 07/09/2008 - 12:09

GK conf. is:



zone local IPIPGW

zone local CM

zone local CME

zone prefix CM 1... gw-priority 10 H.225GK711Trunk_1

zone prefix CM 1... gw-priority 9 H.225GK729Trunk_1

zone prefix CME 3...

alias static 1720 gkid CM gateway voip ras 1719

e164 1000 e164 1001 e164 1002

no shutdown


Chad Stachowicz Wed, 07/09/2008 - 12:14

youssef.ahmed Under the ccm service paramaters there is this

Device Name of GK-controlled Trunk That Will Use Port 1720 None

Host Name/IP Address of GK That Will Use RAS UDP Port 1719 None

Populate these accordingly AND restard CCM Service. All will work then!

HTH, Please rate the post if you find it helpful!


youssef.ahmed Thu, 07/10/2008 - 13:20

Those service parameters are already none ( nothing on them).

My Q. in other words to be more specific:

Can " alias static" command used to route calls to CM or not if trunks register to GK without tech-prefix??

Chad Stachowicz Thu, 07/10/2008 - 13:25

I know, those are default of NONE. You need to set these to match your trunk you want to use alias static on. If these aren't set properly it will never work.

HTH, Please rate helpful posts.


youssef.ahmed Sat, 07/12/2008 - 03:54

Hi Chad,

It worked BUT if I should have two trunks in two regions(one in G711 & other in G729)

How I let two trunks accept calls from CME .?


This Discussion