Browse Prior Art Database

METHOD FOR GUARDING AGAINST TELEPHONE CHARGES

IP.com Disclosure Number: IPCOM000007104D
Original Publication Date: 1994-Feb-01
Included in the Prior Art Database: 2002-Feb-26
Document File: 1 page(s) / 61K

Publishing Venue

Motorola

Related People

Steve Shapiro: AUTHOR

Abstract

Today's CT1 and CT2 cordless telephones have the ability to operate in a multitude of systems. In the most simple method, the phone can have two methods ofoperation.

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MOTOROLA Technical Developments Volume 21 February 1994

METHOD FOR GUARDING AGAINST TELEPHONE CHARGES

by Steve Shapiro

  Today's CT1 and CT2 cordless telephones have the ability to operate in a multitude of systems. In the most simple method, the phone can have two methods ofoperation.

-Public -Home Use

  A more complex model would have a third mode. That is a mode where the phone could be used in an office environment.

For public use, there is normally a per call charge
(i.e. an airtime charge) associated with each and every call. In addition, there may be a per minute charge.

  For home use and use in one's business estab- lishment, normally there aren't any airtime charges. Only those charges directly associated with the tel- ephone company tariffs such as a Long Distance fee,

  The problem is that a user may be at home and then places a call. However if their home is within range of a public system (i.e. Telepoint or a Cellular System) and the phone is set to the "Public" mode, they may place the call through a Telepoint or Cel- lular carrier's network accruing charges unknowingly This is the problem that must be solved.

  The solution is to have a cordless telephone which gives audible feedback when a particular type of call is made. The manner in which this would operate is shown in Figure 1. Any time the user places a call in the public mode, there will be some audible feed- back (i.e. momentary feedback) as the subscriber establishes a link. This could be a "ding:'...