User`s guide

Dialogic

1000 and 2000 Media Gateway Series User’s Guide 193

Routing Table

Information about Routing Table and how it is supported by the Dialogic

Media Gateway is

described in the following sections:

• Routing Table Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193

• Router Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195

• Offline Testing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217

• Call Routing Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220

5.1 Routing Table Overview

The Routing Table (previously referred to as the Dial Plan) describes a set of rules used to define

the characteristics of a call routed through the gateway. It allows telephony requests to be processed

if the inbound information is matched against configured set of rules and determines if there is an

available outbound route for the request. The primary characteristics include the destination

address and the CPID (call party identification) information. The Routing Table 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

Routing Table 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 172.16.3.131 is attempting to connect to the gateway at 172.16.3.200. The

calling number is 101, and the called number is 8675309.