Notifications...............................................................................................................................................
142
Account selection......................................................................................................................................
143
Feature dependencies and restrictions.....................................................................................................
143
Configuration files.....................................................................................................................................
144
Performance characteristics......................................................................................................................
144
Chapter 14: Features..........................................................................................................
145
Customizable banner for login..................................................................................................................
145
Speed Dial List..........................................................................................................................................
147
Administration and use of the Speed Dial List feature..............................................................................
148
Speed Dial List screen..............................................................................................................................
149
Auto retrieve flag.......................................................................................................................................
150
Busy Lamp Field.......................................................................................................................................
151
Configuration flags for Busy Lamp Field...................................................................................................
152
Chapter 15: Hotline service................................................................................................
153
Making a Hotline call.................................................................................................................................
153
Hotline service restrictions........................................................................................................................
153
Provisioning...............................................................................................................................................
154
Service Package.......................................................................................................................................
154
Device configuration file............................................................................................................................
154
Chapter 16: Session Timer Service...................................................................................
157
Session-Expires header............................................................................................................................
157
Min-SE header..........................................................................................................................................
157
Provisioning...............................................................................................................................................
158
Chapter 17: Emergency Services......................................................................................
161
Overview...................................................................................................................................................
161
Location information..................................................................................................................................
161
Dialing plan configuration..........................................................................................................................
162
Feature impact on configuration tasks......................................................................................................
163
Network Element.......................................................................................................................................
164
Characteristics of emergency calls...........................................................................................................
165
Shut down and restart...............................................................................................................................
166
Chapter 18: IP Deskphone restrictions.............................................................................
167
Service package restrictions.....................................................................................................................
167
Distinctive Ringing feature........................................................................................................................
167
Chapter 19: NAT firewall traversal.....................................................................................
169
Chapter 20: Three-port switch and VLAN functionality...................................................
171
System overview.......................................................................................................................................
171
Chapter 21: SIP messages supported by the IP Deskphone..........................................
175
SIP methods..............................................................................................................................................
175
SIP responses...........................................................................................................................................
176
1xx Response—Information Responses...................................................................................................
176
2xx Response—Successful responses.....................................................................................................
177
3xx Response—Redirection responses....................................................................................................
177
4xx Response—Request failure responses..............................................................................................
178
5xx Response—Server failure responses.................................................................................................
180
6xx Response—Global responses............................................................................................................
181
Default error handling................................................................................................................................
181
8 SIP Software for Avaya 1200 Series IP Deskphones-Administration November 2012
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