Technical Overview
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Technical Overview
Session Initiation Protocol (SIP)
Overview
The Session Initiation Protocol (SIP) is a ASCII-based signalling protocol
used for establishing sessions in an IP network. A session could be a sim-
ple two-way telephone call or it could be a collaborative multi-media con-
ference session.
Like other VoIP protocols, SIP provides signaling and session management
within a packet telephony network. Signaling allows call information to be
carried across network boundaries. Session management controls the at-
tributes of an end-to-end call.
SIP was originally developed in the MMUSIC group within the IETF (Inter-
net Engineering Task Force), it has been published since February 1999 as
RFC 2543. The SIP working group is continuing to enhance the protocol
and published version 2 as RFC 3261 in 2002.
SIP Functions
Systems which use SIP are able to provide the following:
• The location of the target endpoint — SIP supports address resolution,
name mapping, and call redirection.
• The media capabilities of the target endpoint—Via Session Description
Protocol (SDP), SIP determines the lowest level of common services
between endpoints. Conferences are established using only the media
capabilities that can be supported by all endpoints.
• A session between the originating and target endpoint — If the call can
be completed, SIP establishes a session between the endpoints. SIP
also supports mid-call changes such as adding another endpoint to the
conference and changing media characteristic or codec.
Summary of Contents for HiPath 8000
Page 1: ...HiPath 8000 optiPoint 410 S V7 0 optiPoint 420 S V7 0 Administrator Manual ...
Page 114: ...Web Interface 114 Network IP and routing Network Addresses Æ page 57 ...
Page 115: ...Web Interface 115 SIP environment Configure System Information Æ page 61 ...
Page 116: ...Web Interface 116 SIP features SIP Features Æ page 64 Transfer on Ringing ...
Page 117: ...Web Interface 117 Quality of Service Quality of Service QoS Æ page 58 ...
Page 120: ...Web Interface 120 Time and date Configuring Date and Time Æ page 67 ...
Page 121: ...Web Interface 121 SNMP Use SNMP Æ page 92 Speech Change Speech Parameters Æ page 93 ...
Page 122: ...Web Interface 122 Ringer settings Configure Ringer Settings Æ page 94 ...
Page 124: ...Web Interface 124 Function keys Function Key assignments Æ page 74 ...
Page 126: ...Web Interface 126 Function key Select a function optiPoint 410 420 economy economy plus ...
Page 137: ...Web Interface 137 Address Book Address Book Æ page 162 WAP WAP Settings Æ page 81 ...
Page 141: ...Web Interface 141 RTP Statistics These parameters are used for development only ...
Page 142: ...Web Interface 142 QoS Data Collection These parameters are used for development only ...
Page 146: ...Web Interface 146 FPN Port Settings Only available in Web Interface ...