Learn how to set up and manage outbound SIP calls. This guide shows you how to configure outbound calling effectively.

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What is SIP?

Session Initiation Protocol (SIP) is a protocol for making voice and video calls over the internet. SIP lets you use VoIP (Voice over Internet Protocol) for calls, offering a modern alternative to traditional phone lines.

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Why use SIP for outbound calls?

SIP-based outbound calling offers several advantages:
  • Lower costs: Reduce expenses for phone lines and long-distance calls.
  • Global reach: Call from anywhere with an internet connection.
  • Scalability: Expand or reduce call capacity as needed.
  • High call quality: Enjoy clearer audio with a stable connection.
  • Business integration: Connect SIP with CRM, call centers, and automation tools.

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Whitelist required IPs

To receive calls from our system, whitelist the following IP addresses: See the latest IPs in Twilio’s documentation:
Twilio SIP Trunking IP Addresses

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Outbound call initiation

Once you’ve whitelisted the required IPs, you can initiate outbound calls directly from the User Interface (UI). 🚀