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Telephoning 13
Recall on no Reply: If the called person does not take the call, you will
be able to reach him without repeating the call by starting a recall in
case of no Reply. The function is possible for internal as well as external
calls. The necessary ISDN feature „Call Completion on No Reply
(CCNR)“ will be supported by PBX.
If you have started a recall, you will be called by the public exchange/
PBX as soon as the other subscriber hangs up after his next call. If you
pick up the receiver then, the other subscriber will be called also by the
public exchange/PBX. If the other one picks up the receiver too, a con-
versation will be established. Only then the recall is deleted.
For ISDN telephones and the system telephone the „Finishing
a Query call“ will be executed via an existing function key or
via menu (e.g. with „End“, Separate“, „Back“; see manual of the tele-
phone).
You can start the recall in the menu of the system telephone
COMfortel 1500/2500, COMfort 1000/1200/2000 plus and
smar-tel-i (only on COMmander Basic; see manual of the telephone).
Some ISDN telephones do not support this function because it is not
possible to dial while ringing.
You can only use this function if the ISDN feature „recall on no
reply (CCNR)“ is offered by the network provider and has been
activated.
You can start the recall in the menu of the system telephone COMfortel
1500/2500, COMfort 1000/1200/2000 plus and smar-tel-i (only on
COMmander Basic; see manual of the telephone).
Some ISDN telephones do not support this function because it is not
possible to dial while ringing.
If you do not hear any confirmation tone, the recall request was refused
by the public exchange.
If you do not pick up the receiver in case of a recall in time (After you
have been called for 15 seconds), the recall will also be cancelled.
The technical condition for a recall must be given e.g. the recall to a
PBX is not possible with some of the network providers.
A recall is tried up to 45 minutes by the public exchange. If the called
person did not finish his call until then, the recall will be deleted auto-
matically.
Recall on Busy:
If you hear a busy tone after dialling an internal or
external telephone number, it can be the case that the called telephone
is actually busy. If you want to reach the requested calling partner with-
out repeated calling, you can start a Recall on Busy. The necessary
ISDN feature „Call Completion on Busy Subscriber (CCBS)“ will be sup-
ported by PBX.
If you have started a recall, you will be recalled by the public exchange/
PBX as soon as the other subscriber finishes his current call. If you pick
up the receiver then, the other subscriber will be called by the public
exchange/PBX. If this one also picks up, a conversation will be estab-
lished. Then the recall will be deleted in the public exchange/PBX.
Reserve Exchange Line:
If you hear a busy tone right after the dialling
of the Exchange Line Access Number, all the exchange lines (1st and
2nd B channel of the available external S
0
ports) are busy at the
moment. Now you are able to reserve an exchange line by dialling the
digit „2“.
If you have started an exchange line reservation as described here, you
will be called by the PBX as soon as there is a free line.
If you pick up the receiver during the ringing, you will hear the external
dial tone as a sign of a reservation of the exchange line. Now you have
to dial the external telephone number only and without Exchange Line
Access Number.
Priority Call:
If an internal telephone is busy for a longer period, it may
be possible that the called person activated the Do-Not-Disturb service
(no longer bothered by the telephone). If you have to reach this person
nevertheless, you can override the Do-Not-Disturb protection of an
internal telephone. If you hear the busy tone after dialling an internal
subscriber number, and you like to reach the subscriber nevertheless,
you will activate the Priority Call by dialling the digit „3“. If you are still
hearing the busy tone, the other subscriber is currently telephoning.
If you always hear the busy tone after the dialling of certain
external telephone numbers or if it is even always the case right
after dialling the Exchange Line Access Number, please check whether
your telephone has the necessary calling authorization for dialling exter-
nal telephone numbers (the setting of the exchange line authorization is
made in the configuration program COMset). A busy tone after picking
The called Subscriber in a Query does not take the Call – Finish the Call
f1 g
Stop Query call by dialling the digit „1“
ringing tone back to the call
I
Start a Recall on no Reply for internal Telephone Call
f2 f a
Start Recall and wait to be recalled by the PBX
ringing tone Ringing must last a minimum of 3 seconds acknowledgement tone
☞
Start a Recall on no Reply for external Calls (CCNR).
f2 f a
Start Recall and wait to be recalled by the public
exchange
ringing tone Ringing must last a minimum of 3 seconds acknowledgement tone
☞
You are Dialling a Number and are Hearing the busy Tone
☞