xiii
Managing lines ······················································································································································· 703
FXS voice subscriber line ············································································································································· 703
FXO voice subscriber line ··········································································································································· 703
E&M subscriber line ····················································································································································· 703
E&M introduction ················································································································································· 703
E&M start mode ··················································································································································· 703
One-to-one binding between FXS and FXO voice subscriber lines ········································································ 705
Echo adjustment function ············································································································································· 705
Adjusting echo duration ····································································································································· 705
Adjusting echo cancellation parameters ··········································································································· 705
Enabling the nonlinear function of echo cancellation ····················································································· 706
Line management configuration ································································································································· 706
Configuring an FXS voice subscriber line ········································································································· 706
Configuring an FXO voice subscriber line ········································································································ 709
Configuring an E&M subscriber line ················································································································· 712
Configuring an ISDN line ··································································································································· 715
Configuring a paging line ·································································································································· 717
Configuring an MoH line ··································································································································· 718
Line management configuration examples ················································································································ 719
Configuring an FXO voice subscriber line ········································································································ 719
Configuring one-to-one binding between FXS and FXO ················································································· 720
Configuring SIP local survival ································································································································ 728
Configuring SIP local survival ····································································································································· 729
Service configuration ·········································································································································· 729
User management ··············································································································································· 730
Trusted nodes ······················································································································································· 731
Call-out route ························································································································································ 731
Area prefix ··························································································································································· 732
Call authority control ··········································································································································· 733
SIP local survival configuration examples ················································································································· 734
Configuring local SIP server to operate in alone mode ·················································································· 734
Configuring local SIP server to operate in alive mode ···················································································· 737
Configuring call authority control ······················································································································ 739
Configuring an area prefix ································································································································ 744
Configuring a call-out route ································································································································ 747
Configuring IVR ······················································································································································· 750
Overview ······································································································································································· 750
Advantages ··································································································································································· 750
Customizable voice prompts ······························································································································ 750
Various codecs ···················································································································································· 750
Flexible node configuration ································································································································ 750
Customizable process ········································································································································· 750
Successive jumping ············································································································································· 751
Error processing methods ··································································································································· 751
Timeout processing methods ······························································································································ 751
Various types of secondary calls ······················································································································· 751
Configuring IVR ···························································································································································· 751
Uploading media resource files ························································································································· 751
Importing a media resource through an MoH audio input port ····································································· 752
Configuring the global key policy ······························································································································ 753
Configuring IVR nodes ················································································································································· 754
Configuring a call node ····································································································································· 754
Configuring a jump node ··································································································································· 757
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