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DOORPHONE
Answering door-
phone calls
Opening of the
doorlock
TANDEM
CONFIGURATION
To activate the
tandem configuration
(continued)
BusinessPhone 250 / BusinessPhone 50
Portable DT400 / DT410 / DT420 / DT430
The doorphone is used to monitor the admission to your
company, i.e you can open the doorlock from your phone.
Press
You will be in speech connection with the calling party.
After you have answered the doorphone, you can open the
door making an inquiry to the door-opener's directory number
Press
Dial the door-opener´s directory number
Please ask your system administrator for the number.
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:
Press
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.
OTHER USEFUL FACILITIES
47
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