Direct Inward System Access, Disa - Ericsson DT290 User Manual

Other Useful Facilities
*72*
Z #
*75*
Z *
Z #
66

Direct Inward System Access, DISA

(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
your office extension number or an account number. You will just
be charged for the call to the office.
#
The external telephone must be a push button type provided with
hash ( ) and star (
pulses (DTMF). After a completed DISA call you must hang up
before a new DISA call can be made.
Depending on the type of authorization code and if an account
code is used, different procedures must be used:
Z With common authorization code
Call the DISA function at your office.
Dial tone.
Press.
Enter the authorization code and press.
Dial tone.
Z
Dial the external number.
Z With individual authorization code
Call the DISA function at your office.
Dial tone.
Press.
Enter the authorization code and press.
Dial your own extension number and press.
Z
Dial tone.
Dial the external number.
*
) keys or a mobile phone adapted for dial tone
DT290