xii
Configuring caller identity and privacy ············································································································ 294
Configuring SIP session refresh ·························································································································· 295
Configuring compatibility ··································································································································· 295
Configuring advanced settings ··································································································································· 297
Configuring the address hiding mode ·············································································································· 297
Specifying the outbound proxy ·························································································································· 297
Configuring registration parameters ················································································································· 298
Configuring voice mailbox server ····················································································································· 300
Configuring signaling security ··························································································································· 301
Configuring call release cause code mapping ········································································································· 302
Configuring PSTN call release cause code mappings ···················································································· 302
Configuring SIP status code mappings ············································································································· 303
SIP connection configuration examples ····················································································································· 304
Configuring basic SIP calling features ·············································································································· 304
Configuring caller ID blocking ··························································································································· 304
Configuring SRTP for SIP calls ···························································································································· 306
Configuring TCP to carry outgoing SIP calls ···································································································· 306
Configuring TLS to carry outgoing SIP calls ····································································································· 308
Managing SIP server groups ·································································································································· 310
Creating a SIP server group ······························································································································· 310
Configuring the real-time switching function ···································································································· 311
Configuring the keep-alive mode······················································································································· 311
Configuring the source address binding mode ································································································ 312
Configuring server information management ··································································································· 313
Configuring SIP trunk ·············································································································································· 315
Features ································································································································································ 316
Typical applications ············································································································································ 316
Protocols and standards ····································································································································· 317
Configuring SIP trunk ··················································································································································· 317
Configuration task list ········································································································································· 317
Enabling the SIP trunk function ··························································································································· 318
Configuring a SIP server group ························································································································· 318
Configuring a SIP trunk account ························································································································ 319
Configuring a call route for outbound calls ·············································································································· 320
Configuring a call route for a SIP trunk account ······························································································ 320
Configuring fax and modem parameters of the call route of a SIP trunk account ······································· 322
Configuring advanced settings of the call route of a SIP trunk account ························································ 322
Configuring media parameters for SIP-to-SIP connections ·············································································· 324
Configuring signaling parameters for SIP-to-SIP connections ········································································· 325
Configuring a call route for inbound calls ················································································································ 326
SIP trunk configuration examples ······························································································································· 327
Configuring a SIP server group with only one member server ······································································· 327
Configuring a SIP server group with multiple member servers ······································································· 333
Configuring call match rules ······························································································································ 336
Managing data links ··············································································································································· 339
Overview ······································································································································································· 339
Introduction to E1 and T1 ··································································································································· 339
E1 and T1 voice functions ·································································································································· 339
E1 and T1 interfaces ··········································································································································· 340
Features of E1 and T1 ········································································································································· 341
Introduction to BSV interface ······························································································································ 341
Configuring digital link management ························································································································ 342
Configuring VE1 line ··········································································································································· 342
