Sample H.323 Dialing Plan
H.323 Configured Meaning of How the Call
Dial Pattern Dial Pattern Is Routed
9* Dial 9 and any The call is directed to the
number of digits PSTN (outside call).
5…. Dial 5 and any The five-digit number is
four digits routed to the Chicago office.
4…. Dial 4 and any The five-digit number is
four digits routed to the Dallas office.
3…. Dial 3 and any The five-digit number is
four digits routed to the Atlanta office.
8* Dial 8 and any The call is a video confernumber
of digits ence call and routed to
a video gateway.
Using this plan, you would probably install gateways that use T1
lines to access the PSTN via a local carrier. Calls beginning with “9”
would get routed to these gateways. You might use gateways that
create Voice over IP (VoIP) sessions for calls to the Chicago, Dallas, or
Atlanta offices (using the internal data network). Calls beginning with
“3, 4, or 5” would get routed to these gateways. You might install videoconferencing
gateways that could complete videoconferencing calls.
Calls beginning with “8” would get routed to these gateways.