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Browse Prior Art Database

CALL WAITING IN CT2

IP.com Disclosure Number: IPCOM000006347D
Original Publication Date: 1991-Dec-01
Included in the Prior Art Database: 2001-Dec-27
Document File: 2 page(s) / 68K

Publishing Venue

Motorola

Related People

Jeff Chia Song Chun: AUTHOR [+2]

Abstract

In existing second generation cordless telephone, CT2 design, it has both phone call and intercom features. The user could at one time activate phone call or inter- com feature. The current CT2 does not support inter- com and phone call communication at the same time; i.e. the user is unable to talk to the phone call party while putting the intercom party on hold or vice versa call waiting feature allows the user to do so; it enables the user to switch between intercom and phone call.

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MOTOROLA INC. Technical Developments Volume 14 December 1991

CALL WAITING IN CT2

by Jeff Chia Song Chun and Simon Tsang Man Lung

INTRODUCTION

  In existing second generation cordless telephone, CT2 design, it has both phone call and intercom features. The user could at one time activate phone call or inter- com feature. The current CT2 does not support inter- com and phone call communication at the same time;
i.e. the user is unable to talk to the phone call party while putting the intercom party on hold or vice versa call waiting feature allows the user to do so; it enables the user to switch between intercom and phone call.

DESCRIPTION

Call waiting is a feature that enable user to:

a. Switch between the intercom and phone call,

b. Transfer the phone call to another handset and return to the intercom call, and

c. Create a 3 parties call.

  Call waiting is activated when there is an incoming call, and the user is engaged on an intercom with the base or handsets. When the incoming call is detected, the ringing tone is superimposed into the intercom call; the parties having the intercom will hear the ringing tone in the background. At this point, the user could ignore the incoming call and continue the intercom, or termi- nate the intercom and respond to the incoming call, or pick up the incoming call and switch between the inter- com and phone call. Call waiting is a toggling feature, the user could choose to switch between the phone call and intercom as long as neede...