Mitel SX-200 Documentation page 382

KEY LINE APPEARANCE
Description
Key lines are extension numbers of single line sets, SUPERSET prime
lines or other key lines. The key lines may be shared and appear on
several SUPERSET sets. Even though these key lines may appear on
several SUPERSET sets there is complete privacy (providing "Privacy
Disabled" is not enabled in the Class of Service). A SUPERSET 4 set
with a Key Line appearance of another set's "prime line" will be able to
answer calls destined for that set. When the line is in use, all other
appearances of that line on other sets become busy and cannot be
accessed. For another party to access a busy key line the call must be
either on hold or the line user activates the privacy release feature on
his SUPERSET
immediately, after a delay (IO, 20, 30 or 40 seconds, set by the Call
Forward - Don't Answer Time-out system option) or not at all. The key
line can also be controlled in the direction of calling; i.e., allow incom-
ing calls only, outgoing calls only or both ways as a regular line.
Conditions
A key line can never be an appearance of a multiple call line.
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Only one set can use the line appearance at one time.
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Programming
See the SUPERSET 4 Programming Form.
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Operation
See the SUPERSET 4 User Guide.
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SECTION MITL91 OS/91
4 set. Incoming calls may ring at the SUPERSET set
10-096-l 07-NA
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