Siemens HIPATH 8000 사용자 설명서

다운로드
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Getting to know your OpenStage phone
22
Trunk keys (on multi-line phones only)
The programmable sensor keys on multi-line phones function as trunk 
keys. Each key programmed with the "Line" function is handled as a line. 
This means up to 9 line keys can be configured on OpenStage 80 and up 
to 8 on OpenStage 60.
A distinction is drawn here between primary, secondary and phantom 
lines. Each of these line types can be used on a private or shared basis 
Æ page 23.
Primary line
All multi-line telephones have a primary line. This line can be reached in the 
usual manner via your public phone number. Incoming calls are signaled on 
this line.
Secondary line
The secondary line on your phone is used as a primary line by another sub-
scriber in the LAN. Your primary line, which is configured on another tele-
phone in the LAN, simultaneously functions as the secondary line on that 
telephone.
Phantom line
Phantom lines are not used as primary lines by any telephones in the LAN. 
Phantom lines are established when the number of lines provided by a 
communications system exceeds the number of available telephones. 
To avoid conflict between individual multi-line phones, the functions 
"Do not disturb" and "Call forwarding" can only be used for the prima-
ry line.