Avaya 1230 - Page 9

Min-SE header.................................................................................................................... 215
Provisioning........................................................................................................................ 216
Chapter 19: Emergency Services........................................................................................ 217
Overview............................................................................................................................ 217
Location information............................................................................................................ 217
Dialing plan configuration..................................................................................................... 218
Feature impact on configuration tasks................................................................................... 219
Network Element................................................................................................................. 220
Characteristics of emergency calls........................................................................................ 221
Shut down and restart.......................................................................................................... 221
Chapter 20: IP Deskphone restrictions............................................................................... 222
Service package restrictions................................................................................................. 222
Distinctive Ringing feature.................................................................................................... 222
Chapter 21: NAT firewall traversal...................................................................................... 223
Chapter 22: Three-port switch and VLAN functionality.................................................... 225
System overview................................................................................................................. 225
Chapter 23: SIP messages supported by the IP Deskphone............................................ 228
SIP methods....................................................................................................................... 228
SIP responses.................................................................................................................... 229
1xx Response—Information Responses................................................................................ 229
2xx Response—Successful responses.................................................................................. 229
3xx Response—Redirection responses................................................................................. 230
4xx Response—Request failure responses........................................................................... 230
5xx Response—Server failure responses.............................................................................. 232
6xx Response—Global responses........................................................................................ 233
Default error handling.......................................................................................................... 233
SIP header fields................................................................................................................. 233
Session description protocol usage....................................................................................... 235
SDP and Call Hold.............................................................................................................. 236
Transport layer protocols..................................................................................................... 236
SIP security authentication................................................................................................... 236
SIP DTMF Digit transport..................................................................................................... 236
Supported subscriptions....................................................................................................... 237
Supported instant messaging............................................................................................... 237
Chapter 24: Audio codecs.................................................................................................... 238
Overview............................................................................................................................ 238
VQMON Codec configuration............................................................................................... 239
Network layer for the SDP negotiations................................................................................. 239
Codec preference through Device Configuration.................................................................... 239
Codec preference selection on the IP Deskphone.................................................................. 241
Codecs preferences on the IP Deskphone............................................................................. 242
Chapter 25: Certificate-based authentication.................................................................... 243
Contents
March 2015 SIP Software for Avaya 1200 Series IP Deskphones-Administration 9
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