Tcs4 For Two Single Gateways - Polycom MGC Administrator Administrator's Manual

TCS4 for Two Single Gateways

TCS4 Protocol can be implemented when calling from an H.323 endpoint to
H.323 endpoint using two single gateways.
An H.323 endpoint (A) dials the gateway using the profile: [prefix ID]
[profile ID]*[remote gateway # (DID)] # E.164 (alias type) of the remote
endpoint.
The TCS4 for Two Single Gateways format: [prefix ID] [profile ID] * [remote
gateway # (DID)] # E.164 (alias type) of the remote endpoint, has been changed
in version 5.0.
The H.323 participant A dials 8390*8254050#1234 where 83 is the prefix ID
(local gateway), 90 is the profile ID (local gateway), 8254050 is the remote
gateway number (DID for the remote gateway for the Forwarding Service)
and 1234 is the E.164 alias of participant B.
The local Gateway queries the remote gateway where the routing service has
a pre-configured dial-in number (DID). The remote gateway sends a TCS4
request to local gateway. The local gateway translates the E.164 string into
TCS4 and sends it to the remote gateway. The remote gateway translates the
TCS4 message into the E.164 alias and connects the call to the remote H.323
endpoint (B).
Figure 7-15: TCS4 for Two Single Gateways
MGC Administrator's Guide
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