Aastra Telecom dt390 Benutzerhandbuch

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3. Press  . 
The system calls the external number. 
Note:
 
Only one callback can be activated on a busy external line. 
7.6.2 
Cancel any single Callback 
To cancel a callback, do the following: 
1.  Press #37* and enter the extension number. (To cancel a single 
callback on a specific external line, dial the digit or digits to get a 
line instead of the extension number.) 
Note:
 
North America press #6*. 
2.  Press # and 
Wait for the call timer to start in the display. 
3. Press   to finish the procedure. 
7.6.3 
Cancel all Callbacks 
To cancel all callbacks, do the following: 
1. Press #37#. 
Note:
 
North America press #6#. 
2. Press  . 
Wait for the call timer to start in the display. 
3. Press   to finish the procedure. 
7.6.4 
Activate Call Waiting 
If you urgently wish to contact a busy extension or an external line, you can 
notify by a call waiting signal. 
Note:
 
Call waiting might be blocked for use on your extension 
(programmed by your system administrator). If call waiting is not 
allowed, you will continue to receive a busy tone. 
To activate call waiting, do the following: 
1.  Press More, select Call Waiting. 
2. Press Select. 
The other part will hear a call waiting signal. 
3.  Close the menu but keep the phone off hook. 
1424_EN_LZT103087.doc Rev B2  2009-09-11 
© Copyright Aastra Telecom Sweden, 2009. 
All rights reserved. 
 
 
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