Siemens OPENSTAGE 60 사용자 설명서

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General information
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Single-line telephone/multi-line telephone
Your OpenStage 60/80 is a "multi-line telephone". This means that multiple 
lines can be configured, which is not the case with single-line phones. 
Each line is assigned an individual phone number which you can use to 
make and receive calls.
The programmable sensor keys function as line keys on multi-line phones 
Æ page 22.
The "Overview" tab on the telephony interface provides information about 
the lines configured on your phone and the current status of each line 
Æ page 35. 
A number of specific features must be considered when using a multi-line 
phone to make and receive calls 
.