Browse Prior Art Database

AUTOMATIC TELEPHONE CALL FORWARDING

IP.com Disclosure Number: IPCOM000009466D
Original Publication Date: 1999-Sep-01
Included in the Prior Art Database: 2002-Aug-27
Document File: 2 page(s) / 75K

Publishing Venue

Motorola

Related People

Hans-Peter Herzig: AUTHOR [+2]

Abstract

This paper describes a method, how a person can walk around in a building still being reachable by phone calls by using the standard wired phones in the building.

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Developments Technical 0 M MO-LA

AUTOMATIC TELEPHONE CALL FORWARDING

by Hans-Peter Herrig and Volker Martschink

INTRODUCTION

  This paper describes a method, how a person can walk around in a building still being reachable by phone calls by using the standard wired phones in the building.

PROBLEM(S) TO BE SOLVED

  If a person walks around in a building, the reachability for a phone call cannot be guaranteed. The person's telephone will ring but the person can- not react accordingly, since the phone might be out of reach.

  Current technology makes use of a cellular or cordless phone to solve this problem. But there arc some disadvantages, especially within a building:

  1. The phone may be out of reach of the base station, especially in large buildings.

  2. Further on batteries are often empty when needed.

  3. Last, not least RF-links may be not safe for interception.

PROPOSED SOLUTION TO THE PROBLEM(S)

  The person wears a passive transponder, like the one used by some security locks or theft protection

of valuable goods, with a unique coding for identifi- cation (see Figure 1 on next page). The following solutions are possible:

  1. All doors are equipped with a scanner to read the transponder (see Figure 1). All scanners are con- nected to a central telephone switch. This telephone switch registers the user whenever he/she passes a door. Incoming phone calls are routed to the phone next to the door.

  By a special ring signal, the phone indicates a forwarded call. The person...