Vodavi Starplus Triad-S Product Description Manual page 72

Flexible Button Assignment
Enhanced Digital Telephones (8-button) with 5 fixed feature buttons
and 8 flexible buttons. Each flex button can be assigned as a CO/PBX line,
DSS button, Speed Dial or Feature button. Refer to
Programming
Pooled Group Access -- Some or all outside lines can be grouped;
pressing this button accesses the highest numbered unused CO line
in that group.(User programmable)
Loop -- Used to answer a transferred call on a line for which a user
does not have a button assigned. (User programmable)
Unassign (Locked-Out) -- Specific buttons may be designated as
unused or locked out. When a button is programmed as unused, the
button may not be programmed by the station user using flex button
programming procedures.
Codes.
Figure 2-1: Digital Enhanced (8-Button) Telephone
2-43
Table 2-2: Flex Button