Other Useful Features

DISA = Direct 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 your office extension number or an account number. You will just be charged for the call to the office.

The external#phone must be *of push button type provided with pound 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.

There are different procedures depending on the type of authorization code, or when an account code is used.

z *72* z # z

z *75* z * z # z

With common authorization code

Call the DISA function at your office. Dial tone.

Dial.

Dial the authorization code and press. Dial tone.

Dial the external number.

With individual authorization code

Call the DISA function at your office. Dial tone.

Dial.

Dial the authorization code and press.

Dial your own extension number and press. Dial tone.

Dial the external number.

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Dialog 4220 Lite/Dialog 4222 Office

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Ericsson 4220 manual Disa = Direct Inward System Access optional, With common authorization code