AASTRA 4222 Office for BusinessPhone User Guide EN - Manual (Page 82)

Other Useful Features
BusinessPhone – Dialog 4222 Office / Dialog 3211 & 3212 82
Direct Inward System Access (DISA)
If you are working externally and you have the need to make
business calls, call your company and use the company PBX to
make an external call to the desired party. You just pay the cost for
the phone call to your company. The other cost will automatically
be placed on your extension number or on a special project.
Note: To activate this function, you have to change the
Default Password from 0000 to a personal one. Which code
to use and how to change it, see section “ Change
Password” on page 62 .
You can also divert calls from your office extension to your external
position, see section “ Call Forwarding” on page 45 . During the
procedure you will be prompted for your Password. z
Enter the public number of your company,
z
followed by the DISA number.
Ask the system administrator for the defined DISA number.
Note: If want to register the call on an Account Number,
you should use the Account Number procedure before you
enter the external number, see section “ Account Number”
on page 84 .
Follow the voice announcements 0 z
Dial the digit(s) for external line access and the desired public
number.
Note: Which digit to press for external line access depends
on the configuration of the system.
Or:
Use the External Diversion function.
Procedure, see section “ Call Forwarding” on page 45 .
Note: If you program a new diversion address, remember
to reset it when you return to your office.