AT&T MERLIN LEGEND Release 3.1 System Programming Manual page 195

Telephones
Summary: Assign Trunks or Pools to Telephones
Programmable by
Mode
Idle Condition
Planning Form
Factory Setting
Valid Entries
Inspect
Copy Option
System manager
All, but note differences in factory settings.
Telephone idle
Form 4b, Analog Multiline Telephone
Form 4d, MLX Telephone
Form 4e, MFM Adjunct: MLX Telephone
Form 4f, Tip/Ring Equipment
Form 5a, Direct-Line Console (DLC): Analog
Form 5b, Direct-Line Console (DLC): Digital
Form 5c, MFM Adjunct: DLC
Data Form 1a, Modem Data Station
Data Form 1b, 7500B Data Station
Key Mode. An Intercom Ring (ICOM Ring) button, an
Intercom Voice (ICOM Voice) button, and the first eight
lines connected to the control unit are assigned to all
analog multiline telephones, MLX telephones (excluding
operator positions), and MFMs connected to MLX
telephones. Two Intercom Ring buttons are assigned to
single-line telephones; no outside lines are assigned.
Behind Switch Mode. Intercom Ring, Intercom Voice, and
prime line buttons are assigned to all analog multiline
telephones, MLX telephones (excluding operator
positions), and MFMs connected to MLX telephones. Two
Intercom Ring buttons are assigned to single-line
telephones; no outside lines are assigned. When prime
lines are assigned to MLX extensions, lines are not
assigned to MFMs used to connect adjuncts. Lines for
MFMs must be assigned separately.
Hybrid/PBX Mode. System Access Ring (SA Ring),
System Access Voice (SA Voice), and System Access
Originate Only (SA Orig Only) buttons are assigned to all
analog multiline telephones and MLX telephones
(excluding operator positions). Five Call buttons are
assigned to QCC operator positions. Two System Access
Ring buttons and one System Access Originate Only
button are assigned to single-line telephones. No personal
line or Pool buttons are assigned.
Extension numbers
Yes
Yes
Common Administrative Procedures
3–59