PJSIP - SIP Stack

PJSIP is an Open Source SIP prototol stack, designed to be very small in footprint, have high performance, and very flexible.

API Reference

Compile Time Settings

• PJSIP

• Error codes

Core

• Endpoint

• Event

• Modules

• Message Creation and Stateless Operations

Message Elements

• Methods

• Header Fields

• Request and Status Liine

• Message Structure

• Multipart Message Body

• The Parser

• URI:

  • Generic URI

  • SIP URI

  • tel URI

  • Other URI schemes

  • URI Parameter Container

• Media/MIME

• Message Body

Transport

• SIP Transport API

• DNS SRV Resolution

• Loop

• TCP

• TLS

• UDP

Authentication

• SIP Authentication

• Digest AKAv1 and AKAv2

Transaction Layer

• SIP Transaction

• Stateful Operations

Base UA/Common Dialog Layer

• SIP Dialog

• UA Module

• Core Proxy Layer

User Agent Layer

• INVITE Session

• 100rel/PRACK - Reliability of Provisional Responses

• Client Registration

• SIP Replaces support (RFC 3891 - “Replaces” Header)

• SIP Session Timers support (RFC 4028 - Session Timers in SIP)

• SIP REFER (RFC 3515) for Call Transfer etc.

Event and Presence

• SIP Event Notification (RFC 3265) Module

• Additional Event Header Fields

• Message Composition Indication (RFC 3994)

• SIP Message Summary and Message Waiting Indication (RFC 3842)

• PIDF/Presence Information Data Format (RFC 3863)

• SIP Extension for Presence (RFC 3856)

• SIP Event State Publication (PUBLISH, RFC 3903)

• RPID/Rich Presence Extensions to PIDF (RFC 4480)

• XPIDF/Presence Information Data Format