Ericsson Dialog 4223 Professional User Manual page 40

Ericsson Dialog 4223
DISA = Dialling Inward System Access
(Optional)
If you are assigned to use this function 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 to your extension
number or an account number. You will just be charged
for the call to the office.
The external phone must be off push button type
provided with the hash key(#) and star key (*) or a mobile
phone adapted for dial tone pulses (DTMF).
After a completed DISA call you must hang up before a
new DISA call can be made.
With Authorisation code
Call the DISA function at your office
Dial tone
Dial
Dial the authorisation code and press
Dial tone
Dial the external number
39