Ericsson DIALOG 4220 - Manual (Page 62)

Other Useful Features
Dialog 4220 Lite/Dialog 4222 Office 62
Other Useful Features
Account code (optional)
This function is used to charge a call to an account number or to
prevent unauthorised calls from your phone. The account code can
have 1 to 15 digits. *61*
Dial.
Note: Finland and Norway, dial
* 7 1 *
z #
Dial the account code and press.
Dial tone. z
Dial the digit or digits to get an external line and the external
number.
Ongoing external call
When used to charge a call it is also possible to connect an
ongoing external call to an account code. During the call: Х Ф
Line Press the ongoing call Line key to put the call on hold. *61*
Dial.
Note: Finland and Norway, dial
* 7 1 *
z #
Dial the account code and press.
Dial tone. Ц Ф
Line Press the flashing Line key for the call put on hold.