If The Called Party Is Busy - Bosch Integral TM13 Operating Instructions Manual

Making calls

If the called party is busy

If you call an internal subscriber and the line is busy, you can activate automatic
callback.
If the called party is busy
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You call an internal subscriber and the line
is busy.
Press the "Callback" key to initiate auto-
matic callback.
Your phone rings as soon as the other
party hangs up.
Lift the handset.
The call to the other party is repeated. If
the party answers, you can make the call
as usual.