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Calling or Called Number Feature for Telephone System

IP.com Disclosure Number: IPCOM000050992D
Original Publication Date: 1982-Dec-01
Included in the Prior Art Database: 2005-Feb-10
Document File: 2 page(s) / 36K

Publishing Venue

IBM

Related People

Brady, RL: AUTHOR [+2]

Abstract

A small auxiliary circuit, referred to as a call diverter, is provided in a PABX telephone system and is utilized to emit data in an appropriate manner to provide status information and/or identification information, such as calling or called number. This information can be forwarded, for example, to a voice message system on demand, and as desired, using either dial pulses or multi-frequency tones.

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Calling or Called Number Feature for Telephone System

A small auxiliary circuit, referred to as a call diverter, is provided in a PABX telephone system and is utilized to emit data in an appropriate manner to provide status information and/or identification information, such as calling or called number. This information can be forwarded, for example, to a voice message system on demand, and as desired, using either dial pulses or multi-frequency tones.

It is assumed that all telephones in the office or establishment are supplied with call diverters. The call diverters are then designed to include additional functions.

Since the units are directly connected together, they have the ability to communicate with each other without disturbance to other units on the PABX. They can, then, provide information of CALLING and CALLED numbers to each other and/or the message system. By exception, the call diverter can indicate that the call is an external call or from an unequipped telephone, and a flag can be given to the user. The message system can thus make a more complete and error-free system since the data is supplied by the equipment rather than a more fallible source, the user.

Additionally, the call diverters may be programmed (using microprocessors) to call each other and provide functions such as Call Waiting and Camp On. Camp On refers to the capability of the system to wait for a busy number to complete a call and then become available to the user. The user can...