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.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.
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