User Guide EN Owner manual

Accessories
Dialog 4223 Professional/Dialog 4225 Vision114
Extra handset (optional)
The extra handset is used in parallel with the ordinary handset allowing
another person to listen to an ongoing call. The extra handset is
connected to the headset outlet under the phone, see section
“Installation” on page 117.
It is possible to switch between the speaking party and the listening
party.
Í
Press to switch between the speaking and listening party.
Note when speaking: For good speech quality, only one
person at the time should speak.
Pull-out leaf (optional)
The pull-out leaf is used for a personal telephone number list and is
installed under the phone. To install the pull-out leaf, see section
“Installation” on page 117.
Use the DCM (Designation Card Manager) to make and print your own
card for the pull-out leaf. DCM is included on the Enterprise Telephone
Toolbox CD or it can be downloaded from: http://www.aastra.com
For more information, please contact your Aastra certified sales partner.