1. Getting started
  2. What can be done with Voximplant?
  3. Programmable Voice
  4. Making outbound calls
  5. Calls to SIP
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Calls to SIP

Voximplant has SIP connectivity that enables VoIP calls between your Voximplant application and your private PBX.

To make a call, you need to use the VoxEngine.callSIP function. Basic usage requires providing the SIP URI that you want to call this way:

callSIP
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callSIP

By default, calls are made using UDP as transport. TCP transport can be enabled by specifying it in the SIP URI:

callSIP with TCP
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callSIP with TCP

You can also enable TLS for your SIP calls by adjusting the URI:

callSIP with TLS
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callSIP with TLS

Extra parameters like From header, SIP authentication, etc. may be specified by passing the CallSIPParameter structure.