Aastra Dialog 4420 IP Basic User Manual page 53

*6*
z #
*75*
z *
Dialog 4420 IP Basic
DISA = Direct Inward System Access
(optional)
If you are assigned to use this feature and you are working
externally, you can call your office and get access to an external
line in order to make business calls. The business call will be
charged your office extension number or an account number. You
will be charged just for the call to the office.
The external phone must be of push button type provided with
pound key (
tone pulses (DTMF).
After a completed DISA call you must hang up before a new DISA
call can be made.
There are different procedures depending on the type of
Authorization Code, or when an Account Code is used.
z
With common Authorization Code
Call the DISA feature at your office.
Dial tone.
Dial.
Dial the Authorization Code and press.
Press
Dial tone.
z
Dial the external number.
z
With individual Authorization Code
Call the DISA feature at your office.
Dial tone.
Dial.
Dial the Authorization Code and press.
# *
) and star key ( ) or a mobile phone adapted for dial
Other Useful Features
53