xiii
Managing lines ···························································································· 343
FXS voice subscriber line ······························································································································ 343
FXO voice subscriber line ······························································································································ 343
E&M subscriber line ······································································································································· 343
E&M introduction ···································································································································· 343
E&M start mode ····································································································································· 343
One-to-one binding between FXS and FXO voice subscriber lines ······························································· 345
Echo adjustment function ······························································································································· 345
Adjusting echo duration ·························································································································· 345
Adjusting echo cancellation parameters ································································································ 345
Enabling the nonlinear function of echo cancellation ············································································· 346
Line management configuration ····················································································································· 346
Configuring an FXS voice subscriber line ······························································································ 346
Configuring an FXO voice subscriber line ······························································································ 348
Configuring an E&M subscriber line ······································································································· 352
Configuring an ISDN line ························································································································ 355
Configuring a paging line ······················································································································· 357
Configuring an MoH line ························································································································· 358
Line management configuration examples ···································································································· 359
Configuring an FXO voice subscriber line ······························································································ 359
Configuring one-to-one binding between FXS and FXO ········································································ 360
Configuring SIP local survival ····································································· 367
Configuring SIP local survival ························································································································ 368
Service configuration ······························································································································ 368
User management ·································································································································· 369
Trusted nodes ········································································································································ 369
Call-out route ·········································································································································· 370
Area prefix ·············································································································································· 371
Call authority control ······························································································································ 371
SIP local survival configuration examples ······································································································ 373
Configuring local SIP server to operate in alone mode ·········································································· 373
Configuring local SIP server to operate in alive mode ··········································································· 375
Configuring call authority control ············································································································ 377
Configuring an area prefix ······················································································································ 382
Configuring a call-out route ···················································································································· 384
Configuring IVR ··························································································· 387
Overview ························································································································································ 387
Advantages ···················································································································································· 387
Customizable voice prompts ·················································································································· 387
Various codecs ······································································································································· 387
Flexible node configuration ···················································································································· 387
Customizable process ···························································································································· 387
Successive jumping ······························································································································· 387
Error processing methods ······················································································································ 388
Timeout processing methods ················································································································· 388
Various types of secondary calls ············································································································ 388
Configuring IVR ·············································································································································· 388
Uploading media resource files ·············································································································· 388
Importing a media resource through an MoH audio input port ······························································· 389
Configuring the global key policy ··················································································································· 390
Configuring IVR nodes ··································································································································· 391
Configuring a call node ·························································································································· 391
Configuring a jump node ························································································································ 394
Configuring a service node ···················································································································· 396
Configuring access number management ····································································································· 397
Configuring an access number ·············································································································· 397
Configuring advanced settings for the access number ·········································································· 398
IVR configuration examples ··························································································································· 398
Configure a secondary call on a call node (match the terminator of numbers) ······································ 398
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