Digi Tech DigiTech Telephone C0408 Manuel D’Utilisation

activated when station port 17 rings or when ringing 
sent to the paging port.

 7 ringing,  an

external device is often used to provide loud ringing.

 ringing,  an external

paging amplifier is usually employed. The system

supplies ringing tones to the paging port along with the

relay closures. The ringing tones can be sent to the
input of an external paging amplifier. The relay

closures can be employed to energize the paging

amplifier while the ringing tone is being sent to it.

System class of service programming is used to
choose either the paging port. or station port 17 for the
ringing port relay control. System class of service also
determines the type of ringing sent to the paging 
Station class of service programming determines the

type of ringing sent to station port 

 Also refer to the

discussions titled:  Common Audible Ringer 
and  External Paging Interface.

If an external music source is provided, background
music can be turned on and off at individual stations.

The loudness of the background music is adjusted with
the call monitor speaker volume control, and the
background music automatically turns off during calls.

No class of service programming is required to provide

this feature. Also refer to the discussion titled: 

The system provides all of the basic, 1 

 button

service features. These features are: selective line
pickup, common line pickup, muftiline pickup, and
hold. No special class of service programming is
required.

Battery back-up assemblies including chassis, cable,

fuses, and batteries are offered as optional kits

(available from Comdial). The assemblies are

designed to connect directly to the 

power source (UPS) interface located on the common

equipment chassis. No user intervention is required
with this feature, and no class of service programming

is required.

Provision has been made for attaching a Comdial

provided optional battery back-up 

 to give full

uninterrupted system power in case of an AC power

loss. The switching and charge circuitry are in the
common equipment, while batteries, chassis, and
cable are packaged as a separate option. When
plugged into an active AC power source the common
equipment will constantly charge the attached
batteries. Built-in circuitry automatically switches to
battery power when AC power is lost. 

 batteries at

full charge, a fully loaded system will operate for a

minimum of one hour without AC power.

A class of service assigned to a particular station or

line can be assigned to an entire block of stations or
lines with one programming action. This feature
eliminates the need to individually program stations
and lines 

 the same class of service. Block

programming class of service can be performed after a
station class of service or line class of service has been
programmed for a particular station or line.

The internal speaker at each station provides
call-announce capability over the intercom link. A

handsfree response to a call-announce call can be
made. This response is transmitted by the microphone

built into the telephone housing..

The system provides 

 estimated costing of all

outside calls. 

 also provides station message detail

accounting (SMDA) printout reports of all costed calls
as well as displayed call costs on LCD speakerphones.
Call costing, in general, provides a means of
establishing costs to be applied to outside calls made

from system telephones. Call costing computes

charges for a call after it is completed. 

 does not

restrict dialing as toll restriction does. Call costs are
based on a two-tier time rate and includes a line
surcharge cost. Allowances can be programmed for
call set-up and minimum call duration. The system
provides several ways of determining call costing

making it is possible to apply reasonable rates for the
entire country.

The system is arranged to automatically provide a

report whenever the costed call storage reaches 95
percent of 

 Additionally, programming can be

effected that causes these reports to be printed

automatically at a specific time of day.

There are five different SMDA reports which can be

produced:

Description Of System Feat!

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