Registration and automatic call redirecting for cordless telephone systems

• US 5,222,123 A
• Filed: 09/23/1991
• Issued: 06/22/1993
• Est. Priority Date: 01/08/1990
• Status: Expired due to Fees

• Current Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Brown, David L., Patsiokas, Stelios
• Primary Examiner(s): Kuntz, Curtis
• Assistant Examiner(s): Bost, Dwayne D.
• Application Number:
  US07/764,987
• Time in Patent Office: 638 Days
• Field of Search: 379/57-61, 379/63, 379/67, 379/201, 379/210-212
• US Class Current: 455/417
• CPC Class Codes: H04M 1/006 Call diverting means
• CPC Class Codes: H04M 1/72505 Radio link set-up procedures
• CPC Class Codes: H04M 11/022 Paging systems personal calling arrangements or devices G08B3/1008; selective calling networks H04W84/022
• CPC Class Codes: H04M 2203/1091 Fixed mobile conversion
• CPC Class Codes: H04M 2207/18 wireless networks
• CPC Class Codes: H04M 2242/30 Determination of the location of a subscriber
• CPC Class Codes: H04M 3/533 Voice mail systems
• CPC Class Codes: H04M 3/54 Arrangements for diverting calls for one subscriber to another predetermined subscriber based on the calling party profile H04M3/42059; based on location H04M3/42348; based on presence H04M3/42365; to voice mail H04M3/53308
• CPC Class Codes: H04M 3/548 with remote control
• CPC Class Codes: H04W 4/16 Communication-related supplementary services, e.g. call-transfer or call-hold

Abstract

A method for redirecting calls to a cordless telephone wherein the user of the cordless telephone registers a location code at a call redirecting module. The location code informs the call redirecting module to redirect calls, that are directed to a first telephone unit, to a base station which is part of a network. The base station transmits the call, so that the cordless telephone receives the call if it is within the range of the base station. In the event that the cordless telephone receives the call, it transmits an acknowledgement signal. The base unit will cease to transmit the call if it does not detect the acknowledge signal within a predetermined time interval.

Claims

1. In a communication system comprising a portable radio communication unit, a paging base station, a selected remote base station, a first telephone, and a second telephone, the cordless telephone communication system lacking the capability to automatically locate the portable radio unit without first polling and receiving an acknowledgment, a method for redirecting signals comprising the steps of:

(a) transmitting a call-forwarding request signal with the portable radio communication unit, the call-forwarding request comprising a portable radio communication unit identification code, a location code for the selected remote base station, a message instructing the selected remote base station not to transmit paging signals and to provide a person, that is sending a call to the first telephone, a message stating that the paging base station is registered for call-redirection and to stand-by during a call redirection procedure; and

(b) receiving the call-forwarding request signal with the paging base station and initiating a call forwarding procedure whereby the base station does not transmit paging signals and provides the person, that is sending a call to the first telephone, a message stating that the portable radio communication unit is registered for call-redirection, that the person is to stand-by during the call redirection procedure, and that calls from the second telephone that are directed to the first telephone are redirected to the portable radio communication unit.