User`s guide

Dialogic
®
1000 and 2000 Media Gateway Series User’s Guide — September 2007 149
Dialogic Corporation
5
Dial Plan
Information about dial plan and how it is supported by the Dialogic
®
Media Gateway is described
in the following sections:
Dial Plan Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
CPID (Number) Matching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
Channel Pools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
CPID (Number) Manipulation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
Inbound VoIP Call Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
Inbound TDM Call Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
Web Configuration Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
Offline Testing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
Implementation Example. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
5.1 Dial Plan Overview
The dial plan describes a set of rules used to define the characteristics of a call routed through the
gateway. The primary characteristics include the destination address and the CPID (call party
identification) information. The dial plan affects calls originating from the VoIP side, and calls
originating from the TDM (T1, E1, analog, etc.) side.
5.1.1 VoIP to TDM Calls
Calls originating from the VoIP interface have two associated URLs. One contains the originating
address and a calling number. The other contains a destination address and a called number. The
dial plan uses this information to determine a final TDM destination for the call. Let's say a call
occurs as follows:
From: 101@172.16.3.131
To: 8675309@172.16.3.200
The user at address 172.16.2.131 is attempting to connect to the gateway at 172.16.3.200. The
calling number is 101, and the called number is 8675309. Figure 16 below shows how this
information enters the dial plan control.