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DIRECT STATION SELECTION (DSS)
Description
Allows one-button access to another voice terminal, a paging zone, or a DGC Group. This
feature requires a button assignment on a multiline voice terminal.
There are two types of DSS buttons.
Numbers stored on
DSS buttons (maximum of four
digits) are programmed at the SAT; numbers stored on Flexible DSS buttons (maximum of
four digits) are programmed at the voice terminal.
The procedure for programming FLEX
DSS buttons is provided in the “Program’’ feature description.
To use DSS, the user presses DSS or FLEX DSS and goes off-hook. The caller hears
Ringback Tone.
DSS calls to a multiline voice terminal are received on a System Access
button. The DSS status LED is lighted steadily at the calling station.
The DSS status LED is lighted whenever the pointed-to station is off-hook. The user may
press DSS and remain on-hook to receive the busy-to-idle reminder. The user’s voice
terminal will ring once when the other party hangs up; lifting the handset will automatically
place the call.
When Prime Line Preference is assigned to a DSS button, the button must be pressed to
invoke the busy-to-idle reminder, even though the I-Use LED is lighted.
Access to Paging Zones and DGC Groups:
Access is provided to an individual Paging Zone or to all paging zones or to a DGC group.
The status and busy-to-idle reminder indication described above also apply to DGC groups
with the understanding that they are busy if all the members are busy.
Considerations
Direct Station Selection differs from Automatic Intercom in that it provides one-button
access from one voice terminal to another (one-way only), while Automatic Intercom
provides similar access for each voice terminal (two-way) and must be assigned between two
multiline voice terminals.
A DSS button may point to a single-line station; an Automatic
Intercom button may not.
DSS calls receive call coverage, Automatic Intercom calls do not.
Interactions
● Call Coverage: DSS calls placed to an individual with Call Coverage will receive
standard call coverage treatment.
● Call Following: For Vl systems, DSS calls do not follow users who log in at other
voice terminals. For V2 systems, DSS calls do receive Call Forwarding treatment.
● Direct Group Calling: A DSS button can be assigned to a DGC group. The
associated LED lights steadily when all stations in the group are busy.
● Last Number Dialed (V2): Numbers called by pressing FLEX DSS or DSS buttons
are not saved by Last Number Dialed and cannot be recalled with that feature.
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