Features
491
System functions and features as of R3.0
syd-0367/1.3 – R3.0 – 03.2013
ing call. Once the call has been cleared down, the monitoring phone switches back
to monitoring mode without delay.
If the destination user calls the monitoring phone, the phone temporarily switches
to passive room monitoring (see next chapter).
Tips:
– Room monitoring is inactive while the monitoring phone is ringing.
This gap in monitoring can be prevented by activating call forwarding
on the monitoring phone. The destination user can still make a verifi-
cation call as call forwarding does not apply to him.
– In each case the room monitoring microphone is reactivated after the
delay times. This is indicated by the flashing exclamation mark on the
display of the monitoring phone.
Notes:
– Room monitoring based on DECT technology cannot be 100% reliable.
– Extraneous noises in the monitored room call lead to false calls.
– Therefore no liability can be assumed for failed monitoring calls or for
false calls.
9. 6. 26. 4
Passive room monitoring
Passive room monitoring allows the destination user to listen into a room using a
verification call. To do so, he calls the monitoring phone on which room monitoring
is activated. The phone automatically answers the call without any acoustic signal-
ling and switches the connection through. This is also the case when call forward-
ing has been activated on the monitoring phone.
The check call is possible in all three monitoring modes. The connection type how-
ever is different:
• Room monitoring in modes 1 and 3:
→
The call connection is one-way.
• Room monitoring in mode 2:
→
The call connection is two-way.
During the call connection
As with calls set-up by the monitoring phone in active room monitoring the user
has the possibility of switching back and forth between one-way mode (digit 1)
and two-way mode (digit 2) once the connection has been set up with DTMF suffix
dialling. The switchover is temporary.