DigiTech C0408 END-TO-END Signalling On Intercom, Exclusive Hold, EXECUTIVE/ATTENDANT Override

..tron Of System Features lMl66-083

operations can be performed. Station class of service programming allows certain buttons to be programmed as dynamic line buttons

END-TO-END SIGNALLING

ON INTERCOM

After an intercom call has been established, the system can continue to send dialing signals (DTMF tones) through the intercom path. This feature can be performed from every station in the system, and is s used by peripherals such as voice mail equipment.

After an outside call has been established, the system can continue to send dialing signals (DTMF tones) through the telco network and have them received at the distant end for inward call completion (bank by phone, etc.). This conventional, off-hook dialing feature can be performed from every station in the system.

EXCLUSIVE HOLD

Exclusive hold prohibits a held call from being retrieved by any other station. The exclusive hold condition also links the held call to the timed hold recall timeout feature. After timeout, audible and visual signalling will occur and the exclusive hold condition will revert to a normal line hold condition.

EXCLUSIVE HOLD SYSTEM-WIDE

ENABLE/DISABLE

This feature allow systems that do not require exclusive hold capability to have it turned off system-wide through programming. System class of service programming is used to enable or disable exclusive hold.

EXECUTIVE/ATTENDANT OVERRIDE

This feature allows the user of a station, upon encountering a busy signal at another station, to dial a code that will override the busy signal of a call, sound a warning tone, and allow access to the existing conversation. This feature is enabled through station class of service programming.

EXTERNAL PAGING INTERFACE

A dedicated paging port or a spare line port can be interfaced with an external paging amplifier. The paging amplifier can then be dial-accessed by stations in the system. DTMF tones can be dialed through the line port to provide zone selection if provided by the external paging amplifier. The dedicated paging port does not support any “talk-back’ capability even if such a feature is provided by the external equipment. The

line class of service programming arranges a line port for external paging interface.

FEATURE INHIBIT

A large array of individual features can be disabled system-wide to provide a basic telephone system. A basic telephone system is useful for installation environments where a large proportion of the stations are accessible to unauthorized users thus subject to tampering or for environments where station users must be limited as to the variety of features allowed to them. Features are disabled by system class of service. Once disabled, they can enabled by turning on all features at once using the system default programming.

FLEXIBLE RINGING ASSIGNMENTS

Ringing assignments are programmable on a per station/per line basis. Pinging can be controlled for every line that has an appearance at each station. Delayed ringing is assigned to certain lines at each station through station class of service programming. Refer to the paragraph titled: Delayed Ringing.

FLEXIBLE RINGING

ASSIGNMENTS OF PA PORT

The PA port can be programmed for flexible ringing assignments and zone pages. Any desired lines can be programmed for direct ring, delay ring, or night transfer (of ringing) at this port. Paging can be to programmed zone or to allcall. A speaker can be connected to the PA port to sound the ringing that is generated by the system and sent to this port and paging announcements when they are sent to the programmed zone. Using such an arrangement, it is ’ possible for a user to determine that certain lines are ringing, such as in a night transfer (of ringing) mode, and go to the nearest telephone and answer the call. The most common use for this arrangement is as a night bell eliminating the need for external equipment as required with the common ringer and auxiliary ringer interface. The speaker cannot be used for voice response as the path is one-way only. Use system class of service programming to assign ringing and paging to a PA port.

FLEXIBLE STATION AND LINE

CLASS OF SERVICE CONTROL

The extension number of a station and all other programmable attributes that are initially assigned to a particular station port and the line, along with all programmable line attributes that are initially connected to a particular line port can be re-assigned to a different port through programming action. This feature allows adds, moves, and changes without

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