H.323 To H.320 To H.323 Calls; Endpoint Over An H.320 Backbone To H.323 Endpoint, Using The Address Book - Polycom MGC Administrator Administrator's Manual

H.323 to H.320 to H.323 Calls

Step 1. The H.323 endpoint dials the gateway prefix, the Gateway Link ID,
the Delimiter and Alias.
The digits 70 represent the local gateway prefix defined in the
Network Service Properties and 11 is the local Gateway Link ID
retrieved from the Gateway Link.
With the Address Book method, the gateway includes a conversion
table in which each E.164 ID number is assigned a destination alias.
In this method, the destination endpoint details are taken from the
Address Book table.
Step 2. The local gateway automatically dials the remote gateway using the
string 90#42. The digits 90 represent the remote gateway (H.323)
prefix taken from the local Gateway Link. The Remote Gateway
H.323 profile ID, 42, represents the configured Session Profile (ID
E.164) parameter defined in the To H.323 Session Profile Definition
dialog box. The # is the Speed Dial indicator (Address Book field)
defined in the Gateway Configuration - General Settings dialog box.
Step 3. The remote gateway retrieves the endpoint Alias from the Address
Book table and connects the call.
When an H.323 endpoint calls an H.323 endpoint two different methods may
be used to reach the same endpoint: Forwarding Service or Address Book/
Destinations.
H.323 Endpoint Over an H.320 Backbone to H.323 Endpoint,
Using the Address Book
In this method, the destination endpoint number and the gateway session
configuration details are transferred to the gateway in the dialed number.
MGC Administrator's Guide
7-27