BusinessPhone – Dialog 4223 Professional / Dialog 3213
Other Useful Features

## 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.

You can also divert calls from your office extension to your external position, see section Call Forwarding. During the procedure you will be prompted for your Password.

Dial the public number of your company,

followed by the DISA number.

Ask the system administrator for the defined DISA number.

Note:

If you 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.

Dial the external number.

Or:

Use the External Diversion function.

Procedure, see section Call Forwarding.

Note:

If you program a new diversion address, remember to reset it when you return to your office.

© Ericsson Enterprise 2003