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Nortel Business Secure Router 222 Configuration — Advanced
Appendix M
SIP
The Session Initiation Protocol (SIP) is an application-layer control (signaling)
protocol that handles the setting up, altering, and tearing down of voice and
multimedia sessions over the Internet. SIP is used in VoIP (Voice over IP), the
sending of voice signals over the Internet Protocol.
SIP signaling is separate from the media for which it handles sessions. The media
that is exchanged during the session can use a different path from that of the
signaling. SIP handles telephone calls and can interface with traditional
circuit-switched telephone networks.
SIP Identities
A SIP account uses an identity (sometimes referred to as a SIP address). A
complete SIP identity is called a SIP URI (Uniform Resource Identifier). The URI
of a SIP account identifies the SIP account in a way similar to the way an e-mail
address identifies an e-mail account. The format of a SIP identity is
SIP-Number@SIP-Service-Domain.
SIP Number
The SIP number is the part of the SIP URI that comes before the @ symbol. A SIP
number can use letters like in an e-mail address ([email protected], for
example) or numbers like a telephone number ([email protected],
for example).
Summary of Contents for 222
Page 14: ...14 Contents NN47922 501 ...
Page 24: ...24 Tables NN47922 501 ...
Page 30: ...30 Preface NN47922 501 ...
Page 46: ...46 Chapter 2 Introducing the SMT NN47922 501 SMT menus at a glance Figure 6 SMT overview ...
Page 70: ...70 Chapter 3 WAN and Dial Backup Setup NN47922 501 ...
Page 78: ...78 Chapter 4 LAN setup NN47922 501 ...
Page 100: ...100 Chapter 6 Remote Node setup NN47922 501 ...
Page 104: ...104 Chapter 7 IP Static Route Setup NN47922 501 ...
Page 132: ...132 Chapter 9 Network Address Translation NAT NN47922 501 ...
Page 154: ...154 Chapter 11 Filter configuration NN47922 501 ...
Page 158: ...158 Chapter 12 SNMP Configuration NN47922 501 ...
Page 198: ...198 Chapter 15 Firmware and configuration file maintenance NN47922 501 ...
Page 212: ...212 Chapter 17 Remote Management NN47922 501 ...
Page 232: ...232 Appendix B Triangle Route NN47922 501 ...
Page 252: ...252 Appendix D PPPoE NN47922 501 ...
Page 260: ...260 Appendix F Hardware specifications NN47922 501 ...
Page 270: ...270 Appendix G IP subnetting NN47922 501 ...
Page 308: ...308 Appendix H Command Interpreter NN47922 501 ...
Page 312: ...312 Appendix I NetBIOS filter commands NN47922 501 ...
Page 336: ...336 Appendix L Brute force password guessing protection NN47922 501 ...