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85BusinessPhone – Cordless DT590
Other Useful Features
Tandem Configuration
The tandem configuration is a unit, consisting of two phones using
the same directory number. One of the phones 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 phone)
and need to be mobile within their company’s building with their
own Cordless phone (the secondary phone). Basically, the tandem
configuration works as follows:
To activate the Tandem Configuration
*28# ÜÛ Press to log on the secondary phone.
Wait for the verification tone.
ÚÙ Press to finish the procedure.
For incoming calls:
• Both phones are treated as 1 single extension
.
For outgoing calls:
• Both phones are treated as 2 separate extensions
.
To deactivate the Tandem Configuration
#28# ÜÛ Press to log off the secondary phone.
Wait for the verification tone.
ÚÙ Press to finish the procedure.
For incoming calls:
•The secondary phone cannot be called and the primary phone
works as a normal stand-alone phone.
For outgoing calls:
• Both phones are treated as 2 separate extensions
.