Personal mobile communication system with call bridging

• US 5,703,930 A
• Filed: 02/06/1997
• Issued: 12/30/1997
• Est. Priority Date: 03/11/1991
• Status: Expired due to Term

• Current Assignee: AT&T Corporation (AT&T, Inc.)
• Original Assignee: AT&T Corporation (AT&T, Inc.)
• Inventors: Miska, Richard A., Willcock, William T.
• Primary Examiner(s): CUMMING, WILLIAM D
• Application Number:
  US08/796,833
• Time in Patent Office: 327 Days
• Field of Search: 379/57, 379/58, 379/59, 379/60, 379/63
• US Class Current: 455/426.1
• CPC Class Codes: H04B 7/18556 using a location database
• CPC Class Codes: H04B 7/18567 Arrangements for providing additional services to the basic mobile satellite telephony service
• CPC Class Codes: H04W 4/16 Communication-related supplementary services, e.g. call-transfer or call-hold
• CPC Class Codes: H04W 76/10 Connection setup
• CPC Class Codes: H04W 8/02 Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
• CPC Class Codes: H04W 8/28 Number portability ; Network address portability
• CPC Class Codes: H04W 84/022 One-way selective calling networks, e.g. wide area paging
• CPC Class Codes: H04W 84/027 providing paging services

Abstract

A communications system permits a personal mobile telecommunications device user, such as a cellular telephone subscriber, to complete a connection to a calling party that has attempted to reach the subscriber using the subscriber'"'"'s assigned telephone number, even when the subscriber is roaming outside of his or her home area. The system includes a messaging and bridging complex having an associated database, which receives a call placed to the subscriber. If the subscriber is out of his or her home area so that the call cannot be completed, information stored in the database is used to initiate transmission of a paging signal to the subscriber. The connection to the calling party is held in the complex for a predetermined period after the paging signal is transmitted. The mobile telephone user, upon receiving the paging signal, may initiate a call from their personal mobile telecommunications device to the messaging and bridging complex, which bridges the subscriber and the calling party together. The system can also include interactive voice response equipment for advising the calling party that the call cannot be completed and that a paging signal is being transmitted. The calling party may also be offered other options, including an opportunity to use a voice mailbox or other facility to leave a message in the event that the call cannot be completed.

Claims

1. A system for completing calls directed to a called party equipped with a personal mobile telecommunications device capable of originating and receiving telephone calls, said telecommunications device having an associated home geographic region, said system comprising

a bridge having first and second inputs for establishing a real time two-way call connection between two separate calls received at said first and second inputs;

a switch for receiving a call from a calling party to a called party;

means responsive to a query generated by said switch in response to said call for determining if said called party is roaming outside of said home geographic region;

means responsive to an output from said determining means indicating that said called party is roaming, for announcing to said calling party placing said call to said called party that said called party is not presently able to receive said call and for receiving a signal generated by said calling party in response to said announcement indicating that the calling party is willing to wait;

means responsive to said signal for causing said switch to connect said call from said calling party to said first bridge input;

means for paging said called party; and

means for connecting a second call originated by said called party from said personal mobile telecommunications device to said second bridge input, so that a real-time two-way call connection is established between said calling party and said called party.

2. The invention defined in claim 1 wherein said personal mobile telecommunications device is a cellular telephone.

3. The invention defined in claim 1 wherein said paging means includes satellite transmission means for transmitting a paging signal over a wide geographic area.