Specifications

58 Digital Family Features
Message
System messages can be sent to or received from any
extension in a network of DIGITAL systems. The
message LED on the receiving station will light, and
the display will show the DN of the sending station.
Multiple branch connection
More than two DIGITAL systems can be connected
to each other via public exchange tie lines, and each
system can be connected by outside lines to the public
exchange. All of the branch DIGITAL systems can
reach extensions in any other branch by simply dialing
an internal number, and each branch can use any of
the others' services.
When you dial a number, the DIGITAL system finds
the most efficient and economical route to the called
party, either sending the call via the private network
to the public exchange or directly to the public exchange.
The call processing is transparent to the user. Dialing
and routing applications can be custom tailored to suit
your individual application.
Page
Both internal and external paging can be done to
extensions in networked DIGITAL systems, so you
may easily page from one networked DIGITAL system
to another.
QSIG networking
QSIG provides a secure and confidential way of
connecting a large number of switches supplied by
different vendors. With QSIG networking, you can
build a network of DIGITAL systems or establish a
network between one or more DIGITAL system and
other switches. The DIGITAL systems support the
following features on a QSIG network:
Basic call
Hold
Transfer
Conference
Indefinite loop avoidance
Interworking for basic call services
Caller Line Presentation (CLIP)
Recall
Both unscreened and patch recall can be performed
across T1/E1 or tie lines in networked systems.
Reply via ImaGEN
You can record and send a reply to any ImaGEN
message received from any extension in networked
DIGITAL systems.
Satellite operation
A DIGITAL system can reach the public exchange
through another DIGITAL system.
Tandem operation
Two DIGITAL systems can each be connected by
ISDN, DPNSS, QSIG, T1/E1, or tie lines to a third
DIGITAL system without the first two systems being
connected to each other. The system in the middle can
transfer calls between all three DIGITAL systems and
can provide a path for all three systems to share services.
Transfer
Calls on outside lines or on private network ISDN,
DPNSS, QSIG, T1/E1, or tie lines can be transferred
to another extension in the network, using screened,
unscreened, or confirmed transfer.
Uniform numbering
Each extension in the network is given a unique
extension number. This simplifies intra-network routing.
Calls between any extensions in the network can be
routed without seizing an outside line.