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Elastix Unified Communications Server Cookbook by Gerardo Barajas Puente

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Chapter 9. Networking with Elastix

The main objective of this chapter is to learn how to extend the networking capabilities of our Elastix Unified Communications Server. The recipes we are covering in this chapter are as follows:

  • Setting up remote extensions
  • SIP trunking between Elastix systems
  • Using SIP protocol for trunking
  • Creating a VPN tunnel in our Elastix Unified Communications Server with OpenVPN
  • Configuring channel banks
  • Enabling multisites with Elastix

Setting up remote extensions

One of the many advantages of IP telephony is having client-server type applications, which allow us to enable remote extensions registered to our PBX. We can therefore integrate an enterprise's main office and its branches into one entity or a huge intersite PBX with ...

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