	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 SS7 USI and the SIP SDP (SS7 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

SS7 User Service Information	SIP SDP
Info Transfer Rate Info Transport Capability User Info Layer 1 Protocol Indicator High-Layer Characteristics Identification	Media Line (m=) Bandwidth (B=) Access Line (a=)
Speech Speech G.711 µ-law	audio RTP/AVP 0 AS : 64 rtpmap: 0 PCMU/8000
Speech Speech G.711 µ-law	audio RTP/AVP 0 AS : 64 rtpmap: 0 PCMU/8000
3.1 KHz audio 3.1 KHz audio G.711 µ-law Telephony (or no HLC)	audio RTP/AVP 0 AS : 64 rtpmap: 0 PCMU/8000
3.1 KHz audio 3.1 KHz audio Facsimile Group 2/3	image udptl t38 AS : 64
3.1 KHz audio 3.1 KHz audio Facsimile Group 2/3	image tcptl t38 AS : 64
64 Kbps unrestricted Unrestricted digital info with tone announcement	audio RTP/AVP 9 AS : 64 rtpmap: 9 G. 722/8000
64 Kbps unrestricted Unrestricted digital info	audio RTP/AVP AS : 64 rtpmap: CLEARMODE/8000

Key Products