AASTRA 4220 Lite for BusinessPhone User Guide EN - Manual (Page 71)

71 BusinessPhone – Dialog 4220 Lite / Dialog 3210
Other Useful Features
Other Useful Features
By using these features your productivity will be increased, e.g. you
can set reminders for important meetings, place the cost for
external calls on separate accounts, listen to music via the
loudspeaker and much more ...
Tandem configuration
The Tandem configuration is a unit, consisting of two telephones
using the same directory number. One of the telephones is defined
as the Primary and the other one as the Secondary.
This function enhances the communication for users that, for
example, have a wired phone on their desk (the primary telephone)
and need to be mobile within their company’s building with their
own portable (the secondary telephone). Basically the Tandem
configuration works as follows:
To activate the Tandem configuration
Secondary on/off
Ô
Press (pre-programmed).
Or: *28#
Dial to log on the secondary telephone.
For incoming calls:
•
Both telephones are treated as 1 single extension.
For outgoing calls:
•
Both telephones are treated as 2 separate extensions.