gatekeeper call routing

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May 13th, 2010
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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?

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seaman0555 Thu, 05/13/2010 - 13:46
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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 Fri, 05/14/2010 - 00:02
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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

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