You are here: CSP Developer’s Guide: Internet Protocol > 5 Session-Initiation Protocol (SIP) Software > Reporting/Generating SIP Responses

Reporting/Generating SIP Responses

This section describes the following features that report and generate SIP responses:

• Call Progress Notification to Host with PPL Event Indication

• Early Media

• SIP 182 Queued Message

• SIP/VoIP Media Parameters Synchronization

Session-Initiation Protocol. A signaling protocol used for establishing sessions in an IP network. A session could be a simple, two-way telephone call, or it could be a collaborative multi-media conference session.