Teletronics Enterprise SIP Server - Manual (Page 7)

TELETRONICS INTERNATIONAL, INC.
6 Enterprise SIP Server Tutorial – Dial Plan
s-tut-dp1.51-041228
1. Introduction
This document is one part of a collection of documents that explain the operational
functionalities of the Enterprise SIP Server (“ESS”). This particular document is a tutorial on
how to use a Dial Plan.
Using this Dial Plan, you can manage SIP sessions flexibly as you like such as for routing calls
to desired destination, for filtering specific sip sessions, for load balancing SIP devices, etc.
For every session request, Enterprise SIP Server will first check if the destination user (SIP-
URI) is in its register database. If the destination is in the database, Enterprise SIP Server will
route the request to the most appropriate SIP-URI based on the database. When a user cannot
be located in the database, the Dial Plan setting will be used. Enterprise SIP Server checks
from the first listed condition in the Dial Plan rules, which are shown in the “Dial Plan” page of
the Enterprise SIP Server Administration tool. If the condition isn’t fulfilled, the Enterprise SIP
Server checks the second line, and so on. Once the Enterprise SIP Server finds the matching
condition, it will execute the process defined by that rule and finish the decision operation.
For each rule in the Dial Plan, only when all conditions set in “Matching Patterns” are true, the
processes defined in “Deploy Patterns” are executed.