	SIP Reference Guide
Table Of Contents
DNS Example
Elements and Architectures
Header Fields
Header Fields – Compact Forms
Header Parameters & Values
INVITE Client Transaction
INVITE Server Transaction
INVITE/200
Mapping Between SS7 USI and the SIP SDP (SS7 Origination)
Mapping Between the SIP SDP and SS7 USI/HLC (SIP Origination)
Mapping ISUP Cause Codes to SIP-I/SIP-T Responses
Mapping SIP-T Responses to ISUP Cause Codes
Mechanics: Location
Mechanics: Registration
Namespaces and Priority Values for the Resource Priority Header Field
NAPTR Records
Non-INVITE Client Transaction
Non-INVITE Server Transaction
Option Tags for SIP Extensions
Response Code
Security Mechanism Names
Session Description Protocol
SIP Events
SIP Methods
SIP Response to a Call Progress (CPG) Message
SIP Timers
SIP/SIPS URI Parameters
SIP-I Responses - ISUP Cause Codes
SIPS's Use of DNS
SRV Records
Types of DNS Resource Records
URI Purposes
Warning Codes
Glossary of SIP Acronyms
SIP References

Mapping Between the SIP SDP and SS7 USI/HLC (SIP Origination)

Other SIP Resources

	SIP Pocket Guide
	SIP Signaling Router Use Cases Multimedia
	SIP Sessions Blog
	SIP Signaling Router Application Handbook
	SIP Signaling Router (SSR) Use Cases Application Guide

SIP SDP	SS7 User Service Information	High-Layer Characteristics
Media Line (m=) Bandwidth Line (b=) Access Line (a=)	Info Transfer Rate Info Transport Capability User Info Layer 1 Protocol Indicator	High-Layer Characteristics Identification
audio RTP/AVP 0 Nothing or 64 Kbps	64 Kbps 3.1 KHz audio G.711 µ-law
audio RTP/AVP 64 Kbps rtpmap PCMU/8000	64 Kbps 3.1 KHz audio G.77 µ-law
audio RTP/AVP 9 AS: 64Kbps rtpmap: 9 G. 722/8000	64 Kbps Unrestricted digital info with tones and announcements
audio RTP/AVP AS: 64 Kbps rtpmap CLEARMODE/8000	64 Kbps Unrestricted digital info
image udptl t38 Up to 64 Kbps	64 Kbps 3.1 KHz audio	Facsimile Group 2/3
image tcptl t38 Up to 64 Kbps	64 Kbps 3.1 KHz audio	Facsimile Group 2/3
audio RTP/AVP 384 Kbps rtpmap CLEARMODE/8000	384 Kbps Unrestricted digital info
audio RTP/AVP 1472 Kbps rtpmap CLEARMODE/8000	1472 Kbps Unrestricted digital info
audio RTP/AVP 1536 Kbps rtpmap CLEARMODE/8000	1536 Kbps Unrestricted digital info

Key Products