AT&T MERLIN LEGEND Release 4.0 Feature Reference page 183

Feature Reference
Table 10. Results of Pressing DSS Button While Active on a Call: QCC Position
Extension Type
User or calling group
Pool dial-out code or ARS
code
Paging group
Park zone
Line/trunk number,
Listed Directory
Number, unassigned
extension numbers,
"Dial 0" calls
The red LEDs for each DSS button are used to determine whether a user is on a
call (off hook), has no call active (on hook), or is using Do Not Disturb. The LED
indication (on) is the same for off-hook and Do Not Disturb; however, for
Release 2.0 and later, the operator can inspect the DSS button to determine
whether the user is on a call or has activated Do Not Disturb. For a calling group
extension on a DSS button, the red LED indicates the status of the queue. For a
pool dial-out code on a DSS button, the red LED indicates trunk availability.
Table 11 shows the meanings of the red LEDs for DSS buttons while the
operator position is in normal operation and message status is not active.
Result
The caller is put on hold, the transfer is initiated, and the
extension is dialed automatically. If extended call completion
is programmed with the Manual option, the operator must
press the Release button or hang up to complete the
transfer. If extended call completion is programmed with the
Automatic option, the transfer is completed automatically.
The caller is put on hold, the transfer is initiated, and the pool
dial-out or ARS code is dialed automatically. The operator
can then dial the telephone number. Transfer completion is
always manual; the operator must press the Release button
or hang up to complete the transfer, regardless of whether
extended call completion is programmed as manual or
automatic.
The caller is put on hold, a Call button is automatically
selected, and the paging group extension number is
automatically dialed. The call transfer process is not
automatically initiated because calls cannot be transferred to
a paging group.
The Park feature is activated, and the call is put on hold in
the selected park zone to allow Pickup from any extension in
the system.
Ignored, no effect
Direct Station Selector: MLX
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