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SIP Call Overview

This section provides an overview of how the CSP SIP stack works including:

• Configuration Messages

• Configuration

• Possible Modifications to Existing Applications

• PPL Information: SIP UA 0x00A7

• Call Flow Messages

• Routing with Route Control or Outseize Control messages

• Tandem SIP-to-SIP Call Flow Example

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.