3.3.3 Call Forward: .............................................................................................................33
3.4.1.1 Before start .........................................................................................................35
3.4.1.2 Upgrade Version ................................................................................................35
3.5.1 PSTN Outgoing Call .................................................................................................39
3.5.1.2 PSTN Backup.....................................................................................................39
3.5.2 PSTN Incoming Call .................................................................................................39
3.5.2.1 VoIP TEL is busy................................................................................................39
3.5.3 VoIP Outgoing Call....................................................................................................39
3.5.4 VoIP Incoming Call....................................................................................................39
3.6 Hotline mode ........................................................................................................40
4.2 Save and Reboot .................................................................................................43
4.3.1 Network Interface ......................................................................................................44
List of Table
III