Product specifications

4-13
DISTINCTIVE RINGING
A user knows the type of call received by the type of ring heard. Outside calls have a single ring
repeated while internal calls have a double ring repeated.
In addition any trunk or station can be programmed to ring a keyset with a predefined ring tone (1–8)
or a single line port with a predefined cadence (1–5) selection. This provides for easy identification of
special lines or extensions that ring your phone.
DOOR LOCK RELEASE (PROGRAMMABLE)
After answering a call from the door phone, users can dial a code to activate a contact closure. This
can be used to operate a customer-provided electric door lock release mechanism. The contact closure
timer is programmable from 100–2500 ms.
DOOR PHONES
The door phone interface module (DPIM) provides for connection of a door phone to a DLI port.
Pressing the button on the door phone produces a distinctive ring (three short rings repeated) at the
assigned station or station group. If not answered within a programmable time, the system releases
the door phone and stops the ringing. Stations may call the door phone directly and monitor the
surrounding areas. Door phones follow the system ring mode plan.
E & M TIE LINES (E1/COPPER)
Your office can be connected to another office with a tie line. Use it to make calls to stations in the
other system. If programming allows, you can access lines in the other system to make outside calls.
Tie line calls can be put on hold, transferred and conferenced in the same way as are other outside
calls. Users accessing the tie line from the other system can get a line in your system and make
outgoing calls. These calls can be controlled by assigning a dialing class to the tie line. Your local
telephone company may use E&M tie lines to provide DID service. In this case these tie lines can be
programmed to follow the DID translation table. See DID. Translated E & M tie line calls have Day
and Night routing capabilities.
EXECUTIVE BARGE-IN (OVERRIDE)
The feature allows specially programmed stations with a barge-in key to override the automatic
privacy of another station or outside trunk. Programming allows barge-in with or without a warning
tone. Stations may also be programmed as “secure” so that they cannot be barged-in on.
WITH WARNING TONE
When the barge-in with tone option is set, the barging-in keyset has its microphone on and the barged-
in on station receives an override display. A double burst of warning tone sounds and repeats every
ten seconds. This feature does not work from single line sets.
WITHOUT WARNING TONE
When the barge-in without tone option is set, the barging-in keyset has its microphone muted and the
barged-in on station does not receive an override display. This feature does not work from single line
sets.
TRUNK MONITOR or SERVICE OBSERVING
This feature allows the user who barged-in to retain the trunk call after the original station has hung
up.