> For the complete documentation index, see [llms.txt](https://prosbcdocs.telcobridges.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://prosbcdocs.telcobridges.com/telecom-references/sip-and-voip/sip.md).

# SIP

UNDER CONSTRUCTION as of August 10th, 2009.

General description goes here.

### Before you begin

The signaling information/code contained in this document/product is based on the best information we have available. Although it has been tested successfully with other piece of signaling equipment, we cannot guarantee that it will conform to the usage of any particular switch in the field.

### SIP User's Guide

#### TUCL

* [Overview](/telecom-references/sip-and-voip/ip-network/tucl.md)
  * Architecture
* Stack Configuration
  * General Configuration
  * Interface(s) Configuration
* Alarms
* States

#### SIP

* Overview
  * Summary
  * Features
  * Specification
  * Architecture within the TB640
* Configuration
* Stack Configuration
  * General configuration
  * UA entity configuration
  * SAP configuration
  * Transport Server configuration
  * System Manager Layer configuration
* User Agent Functionalities
  * SIP message request
  * SIP message response
  * SIP API message identifiers
    * Session Identifier
    * Dialog Identifier
    * Transaction Identifier
  * Scenarios showing uses of API message identifiers
    * Outgoing call setup and termination
    * Incoming call setup and termination
* SIP/SDP Information element usage
  * Overview
  * SIP Utility Library
  * SIP Message
    * Sip Message Header
    * Sip Message Body
  * SIP Header information element
  * SDP information element
  * Example: Building a SIP Invite Request
* Call flow and scenarios
  * Outgoing call state diagram
  * Incoming call state diagram
  * Establishing an outgoing call
    * Call flow with packet losses
    * Call flow with error sending
    * Call flow with remote expires
    * Call flow with local expires
    * Call flow with host Cancel
    * Call flow with no expire header
    * Call flow with host Cancel timeout
    * Call flow with host Cancel cross over
    * Detailed SIP Messages
  * Receiving a call
    * Call flow with packet losses
    * Call flow with error timeout
    * Call flow with remote host Cancel
    * Call flow with remote host Cancel cross over
    * Detailed SIP Messages
  * Requesting to release a call
    * Normal call flow
    * Call flow with packet losses
    * Call flow with error sending
    * Detailed SIP Messages
  * Remote release of a Call
    * Call flow with packet losses
    * Detailed SIP Messages
  * Registering
    * Call flow for register client
    * Call flow for register server
    * Detailed SIP Messages.80
  * Options method
    * Call flow for options client.83
    * Call flow for options server
    * Detailed SIP Messages
  * Refer/Notify method
    * Call flow for refer client
    * Call flow for refer server
    * Detailed SIP Messages
  * Info method.93
    * Call flow for info client.93
    * Call flow for info server
    * Detailed SIP Messages
  * Replaces header
* Error handling
* Alarms
* States
* Accounting

## In this section

* [NAP](/telecom-references/sip-and-voip/sip/nap.md)
* [NAT Traversal](/telecom-references/sip-and-voip/sip/nat-traversal.md)
* [SIP Authentication](/telecom-references/sip-and-voip/sip/sip-authentication.md)
* [SIP Emergency](/telecom-references/sip-and-voip/sip/sip-emergency.md)
* [SIP NAP Polling](/telecom-references/sip-and-voip/sip/sip-nap-polling.md)
* [SIP Privacy](/telecom-references/sip-and-voip/sip/sip-privacy.md)
* [SIP Register Filtering](/telecom-references/sip-and-voip/sip/sip-register-filtering.md)
* [SIP Registration](/telecom-references/sip-and-voip/sip/sip-registration.md)
* [SIP Session timers](/telecom-references/sip-and-voip/sip/sip-session-timers.md)
* [SIP subscribe notify publish forwarding](/telecom-references/sip-and-voip/sip/sip-subscribe-notify-publish-forwarding.md)
* [SIP Transport Server](/telecom-references/sip-and-voip/sip/sip-transport-server.md)
* [SIP-I/SIP-T](/telecom-references/sip-and-voip/sip/sip-i-sip-t.md)
* [SIPREC Forwarding](/telecom-references/sip-and-voip/sip/siprec-forwarding.md)


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