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Telephoning
Automatic Callback on No Reply (CCNR)
If the ISDN Completion of Calls on No Reply service is available, you can also make a
callback request to contact a free subscriber. The procedure is the same as for a busy
subscriber.
You have dialled an external number, but the subscriber does not lift the handset.
Select the code digit 7
or
press the star key, select the code digits 37, then press the hash key. On some tele-
phones, this sequence is pre-programmed for a single key.
You hear an acknowledgement tone.
Replace the handset. As soon as the other subscriber has used his telephone again,
you receive the callback. When you lift the handset, the subscriber’s number is
dialled.
For the latest details of this service, please contact your T-Punkt or Customer
Service department on 0800 33 01000.
c
7
* 3 7
#
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press the star key, select 37, then press the hash key. On some telephones, this
sequence is pre-programmed for a single key.
You hear a positive acknowledgement tone.
Replace the handset. As soon as the called subscriber is free again, you will receive
the callback. When you lift the handset, the subscriber’s number is dialled.
Callback requests are deleted after 45 minutes, or when they have successfully been
carried out. Only one callback per subscriber is possible.
* 3 7
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q
d