Failed to set up calls in the proxy server approach to SIP routing ··············································· 175
Failed to set up point-to-point calls ······················································································ 175
Hardware compatibility with SIP local survival ·············································································· 177
Configuration task list·············································································································· 178
Configuring an operation mode for the local SIP server ·································································· 178
Specifying a trusted node ········································································································ 180
Configuring call authority control ······························································································· 181
Configuring a call rule ······································································································· 181
Applying a call rule set ······································································································ 181
Configuring an area prefix ········································································································ 182
Configuring a call route ··········································································································· 182
Displaying and maintaining the SIP local survival feature configuration ·············································· 183
SIP local survival feature configuration examples ·········································································· 183
Configuring the local SIP server to operate in the alone mode ··················································· 183
Configuring a call route ····································································································· 193
Background ·························································································································· 195
Features ······························································································································ 196
Typical applications ················································································································ 196
Protocols and standards ·········································································································· 197
Hardware compatibility with SIP trunk ························································································· 197
SIP trunk configuration task list ································································································· 197
Configuring a SIP server group ································································································· 198
Creating a SIP server group ······························································································ 198
Configuring a SIP trunk account for registration ····································································· 202
Configuring call routes for outbound calls ···················································································· 203
Binding a SIP server group to the VoIP voice entity ································································ 203
Specifying the proxy server used for outbound calls ································································ 204
Enabling codec transparent transfer ··························································································· 206
Enabling media flow-around ····································································································· 207
Enabling delayed offer to early offer conversion ············································································ 207
Enabling codec transcoding ····································································································· 208
Enabling address hiding ·········································································································· 208
Enabling call forwarding ·········································································································· 209
Enabling call transfer ·············································································································· 209
Displaying and maintaining SIP trunk configuration ······································································· 210
Configuring a SIP server group with only one member server ··················································· 211
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