Comdial Impact Dsu Instructions Manual

The following information illustrates the digit evaluation scheme.
Digit Evaluation
Quantity Of Digits
DialedActual Dialed DigitsDigits Evaluated By
System To Find Line
Group
2 67 067
3 118 118
4 5123 512
7 9782200 978
8 19782200 978
10 8049782200 804, 978
11 18049782200 804, 978
The example below shows how calls to area code 202 are routed using line group 2, calls
to office code 202 are routed using line group 1, calls to office code 973 in area code 716
are routed using line group 4, and all other...

that the CENTREX extensions are 3300–3399. Take programming action to assign line
group 2 to entries 330–339 in the office code table. This means that calls on CENTREX
extensions will use line group 2 and all other calls will default to use line group 1.
Program the 9 digit as the insertion digit for line group 1. With this set up, when a caller
dials a number other than a CENTREX extension, the system automatically inserts a 9
ahead of the dialed digits and routes the call over line group 1.
If no lines...

Flexible Station Numbering Plan
The system supports a flexible station numbering plan for individual stations. Each
station can be programmed to respond to the dialing of any available number between 10
and 7999. This feature may be used to match the calling number of a station located in a
pre-numbered area to that area number. A combination of two, three, or four digit
extension numbers can be assigned as long as they do not conflict. For example: If 21 is
assigned as an extension number, there can not...

Station-To-Station Messaging
If a station has a DSS/BLF appearance at another station, a callback message indication
can be left at that station with the DSS/BLF appearance. The user can dial a special code
to turn on the BLF light at the called station that is assigned to the calling station. This
light indicates that a callback is requested. The light is automatically turned off if a
successful callback is made.
If a station number is not programmed for a DSS/BLF appearance at another station,...

Subdued Off-Hook Voice Announce (SOHVA) Groups
The programmer can program the ability of station ports to originate and/or receive
SOHVA calls by assigning SOHVA calling groups to station ports. This means that he
or she can arrange certain station ports together for SOHVA calling between one another
while excluding other station ports in the system from this group.
The system provides eight different SOHVA groups that are fixed into a variety of
SOHVA receive/originate configurations. A programmer can...

Example 1: Allow station port 10 to originate SOHVA messages to all stations in the
system and allow those stations the ability to originate SOHVA messages to each other
but not to station port 10. Assign group 1 to station port 10 and assign group 2 to all
other station ports.
Example 2: Allow station ports 14 and 15 to receive and originate SOHVA calls
between each other but deny both receive and originate capability from any other system
stations. Assign group 8 to both station port 14 and station...

T
Tandem Attendant
When the programmer uses system class of service programming to enable the tandem
attendant feature, a recall from an unanswered call transfer or a timed hold recall will
ring at the normal attendant station (station 10) that set the transfer or hold condition, and
also ring at the tandem attendant station (station 12).
TAP (Flash/Recall)
If the host system provides custom calling features via a hookflash signal, the
programmer should program the system so that the TAP button will...

Toll Restriction
Default Toll Restriction
The system defaults two toll restriction tables with pre-programmed values and
pre-assigned to all lines. The programmer needs only to assign these tables to the stations
by programming action to put them into effect. He or she can use the toll restriction table
configuration class of service programming to reprogram the defaulted tables with
different information as needed.
Flexible Toll Restriction
A system programmer can configure system toll call restriction...

tables replace any that he or she may have assigned to the station for normal, or day
mode, operation. For example: a programmer can arrange for a station that has no other
toll restriction table assignment to receive a toll restriction table which will restrict
everything but local calls and will only take effect when the system is placed in the night
transfer (of ringing) mode. Therefore, even though users can make toll calls from this
station during daytime operation, they can make no toll calls from...

Tracker Paging System
The optional Tracker Paging System is a wireless paging system that uses an external
base station connected to the common equipment cabinet and individual portable pagers
assigned to the system station extension numbering plan. The Tracker Paging System
allows telephone users to send alpha/numeric or numeric-only messages to Tracker
pagers assigned to station extension numbers. The type of message that the system
delivers is dependent on the model Tracker pager being used. The...