2-7 System Settings........................................................................................................................................ 70
2-7-1 NTP ................................................................................................................................................ 70
2-7-2 Language ....................................................................................................................................... 70
2-7-3 Login Account................................................................................................................................. 71
2-7-4 Backup / Restore............................................................................................................................ 72
2-7-5 System Log .................................................................................................................................... 73
2-7-6 Save / Restart................................................................................................................................. 73
2-7-7 Software Upgrade .......................................................................................................................... 74
2-7-8 Logout ............................................................................................................................................ 74
3. Configuring the VoIP Router through IVR ..................................................................................................... 75
3-1 IVR (Interactive Voice Response) ............................................................................................................ 75
3-2 IP Configuration Settings.......................................................................................................................... 77
4. Dialing Principles ............................................................................................................................................. 79