Twilio SIP Trunk

This guide is only applicable for the PortSIP PBX v22 or higher.

Twilio's Elastic SIP Trunking service automatically scales, up or down, to meet your traffic needs with unlimited capacity. In just minutes you can deploy globally with our easy-to-use self-service tools without having to rely on slow providers. Discover everything you’ll need to take control of your connectivity with Twilio Elastic SIP Trunking.

Twilio’s Elastic SIP Trunking is effectively a "pipe" that connects an enterprise’s SIP infrastructure to the PSTN. This allows you to make calls from your network to the Public Domain for PSTN access (Termination), and receive calls on Twilio phone numbers on your network (Origination).

PortSIP PBX integrated the Twilio Elastic SIP trunking for calls and SMS/MMS that allows you to set up easily.

This article includes the following topics:

• Purchase a DID on the Twilio Platform

• Configuring Twilio Register Based Trunk

• Configuring Twilio Interconnect Trunk

• Configuring Outbound & Inbound Calls

• Twilio SMS Integration