Mitel SX-200 Documentation page 390

PERSONAL OUTGOING LINE
Description
A personal outgoing line provides the SUPERSET 4 user with a second
appearance of the set's "prime line", to be used for outgoing calls only,
thus keeping the "prime line" free for incoming calls. A SUPERSET set
can have many appearances of the personal outgoing line so that
many outgoing calls can be made.
Conditions
A personal outgoing line is unique to a SUPERSET
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Programming
See SUPERSET 4 Programming Form.
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Operation
See the SUPERSET 4 User Guide.
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SECTION MITL9105/911
set.
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