You can set the ringtone, ring duration, call forwarding time on call settings page.
to enter the call settings page.
There are 3 ringtones by default, and you can custom and import at most 4 ringtones via Batch Configuration Tool or iVMS-4200 Client Software.
Ringtone Duration: The maximum duration of indoor station when it is called without being accepted. Ringtone duration ranges from 10 s to 30 s.
The call will end automatically when the actual calling duration is longer than the configured one. Calling duration ranges from 30 s to 60 s.
The ring duration limit beyond which the call is automatically forwarded to the mobile phone designated by the resident. Call forwarding ranges from 0 s to 20 s.
You can enable professional studio function, set unlock and unlock duration.
The function is disabled by default. When it is enabled, the door will be opened automatically when the outer station or door station calls the indoor station.
If the second rotary DIP Switch of the indoor station turns 1, the shortcut key button of professional studio will be displayed on the menu. By default, the button will not be displayed.
By default, professional studio function configures lock 1.
You can view the duration for unlocking.
Indoor extension does not support the ring duration settings and call forwarding settings.