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SIP



Session Initiation Protocol

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Session Initiation Protocol (SIP) is a signaling protocol for initiating, terminating and modifying user sessions over an IP network.

How Twilio Uses SIP

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Using SIP to connect to Twilio is one way(link takes you to an external page) to get access to Twilio's global reach and powerful automation and scripting functions.

It's easy to connect your on-site or virtual Private Branch Exchange (PBX) with Twilio's servers. Here's our overview of connecting your existing SIP communications infrastructure to us.

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For information about SIP Trunking with Twilio, check out our Elastic SIP Trunking documentation.

Dig into our API Reference docs for Twilio's SIP Domains:


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