AASTRA 4223 Professional for BusinessPhone User Guide - Manual (Page 90)

Other Useful Features
BusinessPhone — Dialog 4223 Professional / Dialog 3213 90
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#
Press 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.
12 May 10:35 +15°
SECOND USER LOGGED ON
directory redial
prog