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FreeSWITCH 1.6 Cookbook by Giovanni Maruzzelli, Michael S Collins, Anthony Minessale II

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Chapter 1. Routing Calls

In this chapter, we will discuss routing calls in various scenarios, as follows:

  • Internal calls
  • Incoming DID (also known as DDI) calls
  • Outgoing calls
  • Ringing multiple endpoints simultaneously
  • Ringing multiple endpoints sequentially (simple failover)
  • Advanced multiple endpoint calling with enterprise originate
  • Time-of-day routing
  • Manipulating SIP To: headers on registered endpoints to reflect DID numbers

Introduction

Routing calls is at the core of any FreeSWITCH server. There are many techniques for accomplishing the surprisingly complex task of connecting one phone to another. However, it is important to make sure that you have the basic tools necessary to complete this task.

The most basic component of routing calls is the dialplan ...

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