Call-back on Busy
64
FRITZ!X USB – 7 FRITZ!X USB Operation
7.9 Call-back on Busy
If an external number that you dial is busy, you can request a
signal to tell you when the line you dialed is available again.
When the subscriber you dialed hangs up, your telephone
rings for 20 seconds as it would for an incoming call. When
you pick up your handset, the number of the desired party is
automatically dialed again.
Note that this feature, technically known as “Completion of
Call to Busy Subscriber” or CCBS, must be enabled for your
ISDN line. Once the function has been enabled, you can
activate it using your telephone.
To activate this feature, proceed as follows:
Your call-back request is cleared after 45 minutes, or after
successful redialing. Only one call-back request may be
active at a time.
M
You have just dialed a number and now you hear
the busy signal.
5
Within 20 seconds, dial “5”. Wait for the
acknowledgment tone.
O
Hang up the handset.
K
As soon as the subscriber you dialed hangs up,
your telephone will ring.
N
Pick up the handset. The subscriber’s number is
dialed again automatically.
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