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4.2 Control Centre Instructions
DTMF Control during Call
Tone dialling can be used for
control during calls as shown in the table
2N LiftIP
®
below if Automatic dialling with confirmation is enabled. Commands 1 to 5 are
arranged conveniently for typical use.
DTMF
character
Function description
Confirm to
that the call was successful.
mutes the currently
2N LiftIP
®
2N LiftIP
®
played announcement and sends its confirmation signal;
the call goes on until the call time limit is exhausted and any of the following
commands can be used.
Play information on the communicator (parameter 979).
Extend the call – extend the call by 120 s (parameter 912). Can be used repeatedly.
or
Terminate the call.
The above table applies to Loud automatic dialling with confirmation.