SIP Trunk Overview
A SIP trunk is a virtual telephone line offered by an Internet Telephony Service Provider (ITSP). Through a SIP trunk, users can make and receive calls over the internet.
Terminology
- SIP
- Session Initiation Protocol (SIP) is a multimedia communication protocol developed by the Internet Engineering Task Force (IETF), an application-layer control (signaling) protocol for creating, modifying, and terminating sessions with one or more participants.
- ITSP
- An Internet Telephony Service Provider (ITSP) is a provider of VoIP telephone service, also known as VoIP service provider.
SIP Trunk Types
Yeastar P-Series PBX System supports the following SIP trunk types:
- SIP Register Trunk
- Registration-based SIP trunk that uses username and password for registration with SIP providers.
- SIP Peer Trunk
- IP-based SIP trunk that uses IP address and port of PBX for authentication.
- SIP Account Trunk
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SIP Account Trunk is designed for connection between Yeastar P-Series PBX System and other devices. Yeastar P-Series PBX System will act as a VoIP account provider, the other device should register this account to connect to Yeastar P-Series PBX System.
- WebRTC Trunk
- WebRTC (Web Real-Time Communication) trunk is used to set up WebRTC click-to-call. After you create a WebRTC trunk on the Yeastar P-Series PBX System, a WebRTC inbound call link will be generated automatically, via which users can make calls to the PBX system.
SIP trunk creation methods
- Create a SIP trunk by a template
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Yeastar P-Series PBX System supports leading ITSP across the globe, you can use the pre-configured ITSP templates included in Yeastar P-Series PBX System to set up a SIP trunk quickly and easily. For more information, see Create a SIP Trunk from a Template.
Note: Check tested and supported ITSP from ITSP partner page.
- Create a general SIP trunk
- If your ITSP has not undergone an interoperability test by Yeastar, or you want to set up WebRTC Click-to-Call, you can set up a general SIP trunk.