gatekeeper call routing

seaman0555 · ‎05-13-2010

I am working with a new customer that had much of the install by another vendor, they have 2 gatekeepers, and a handleful of h323 gateways. It looks like all the dial peers are in the gateways not the gatekeeper, which from what I understand is backwards??? Also, we route calls from CUCM to ICM and CVP applications, I see in CUCM the route pattern pointing to the gatekeeper trunk, but do not understand how the gatekeeper know what to do with the calls. Any ideas?

Jaime Valencia · ‎05-13-2010

I'd recommend you to read this:

Understanding Cisco IOS Gatekeeper Call Routing

http://www.cisco.com/en/US/partner/tech/tk1077/technologies_tech_note09186a00800a8928.shtml

HTH

java

If this helps, please rate

www.cisco.com/go/pdihelpdesk

HTH

java

if this helps, please rate

seaman0555 · ‎05-13-2010

Thanks for the link, here is the only config in our gatekeeper

gw-type-prefix 1#* default-technology
no shutdown
endpoint max-calls h323id x.x.x.x

Would this route any calls to this IP? I don't see where we are telling the numbers in CUCM to have a prefix of 1

Giuseppe Larosa · ‎05-14-2010

Hello Seaman0555,

>> I don't see where we are telling the numbers in CUCM to have a prefix of 1

the CUCM will register to the gatekeeper as a gateway (terminal type gateway)

the line gw-type-prefix 1#* default-technology on GK

means that for all gateways registering without providing prefixes 1#* is assumed as the prefix

the H.323 trunk is a communication channel between CUCM servers and the gatekeeper where H.225 RAS messages are exchanged in order to perfom endpoint resolution. RAS = resolution Admission Status

Hope to help

Giuseppe