Call delivery service within a radiotelephone communication system

• US 5,430,790 A
• Filed: 06/13/1994
• Issued: 07/04/1995
• Est. Priority Date: 07/03/1991
• Status: Expired due to Term

• Current Assignee: Motorola Mobility, Inc. (Lenovo Group Ltd.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Williams, James M.
• Primary Examiner(s): Kuntz, Curtis
• Assistant Examiner(s): OEHLING, GEORGE J
• Application Number:
  US08/318,169
• Time in Patent Office: 386 Days
• Field of Search: 379/58, 379/59, 379/60, 379/63, 455/33.1, 455/33.2
• US Class Current: 455/414.1
• CPC Class Codes: H04W 68/00 User notification, e.g. alerting and paging, for incoming communication, change of service or the like

Abstract

The present invention relates to a method and apparatus for enabling RT subscribers (15, 25 and 35), in radio service areas (1, 2 and 3) serviced by a radio telephone control system (11, 21 and 31) (RTCS), to receive calls originally presented to non-servicing RTCSs (11, 21 or 31). In this effort the RTCS (11) currently serving the RT subscriber (15) receives information and a callback number indicating that a call, placed to the RT subscriber (15), is in progress at a remote RTCS (21 or 31). In response, the currently serving RTCS (11) pages the RT subscriber (15). Thereafter, upon receipt of the RT subscriber'"'"'s page response, the currently serving RTCS (11) calls the callback number so as to connect the RT subscriber (15) to the call in progress.

Claims

1. Within a radio telephone network (RTN) , a method for enabling an RT subscriber, in a radio service area serviced by a radio telephone control system (RTCS), to receive calls originally presented to a non-serving RTCS, comprising the steps of:

receiving, at a currently serving RTCS, request information, from an RT subscriber, indicating that the RT subscriber desires to receive, in the current radio service area, calls originally presented to non-serving RTCSs;

sending the request information to a radio telephone information store (RTIS) having service records for the RT subscriber;

updating the RTIS service recores for said RT subscriber as a function of the received request information;

receiving at the non-serving TRCS an incoming call, placed to the RT subscriber;

said non-serving RTCS generating and sending a first call connect request to the RTIS having service records for the RT subscriber;

said RTIS communicating the RT subscriber'"'"'s updated service records to the non-serving RTCS upon receipt of the first call connect request;

said non-serving RTCS generating and sending a second call connect request to the currently serving RTCS, said second call connect request comprising service information and a callback number;

receiving, at the currently serving RTCS, the service information and the callback number from the non-serving RTCS indicating that an incoming call, placed to the RT subscriber, is in progress at the non-serving RTCS;

the currently serving RTCS paging the RT subscriber; and

upon receipt of the RT subscriber'"'"'s page response, the currently serving RTCS calling the callback number so as to connect the RT subscriber to the incoming call.

2. The method of claim 1 wherein the step of sending the RT subscriber'"'"'s request information is performed by the currently serving RTCS.

3. The method of claim 1 wherein the RTIS is a data base maintaining RT subscriber service information.

4. The method according to claim 1 wherein RT subscriber service information comprises at least one of:

RT identification;

RT privileges;

.

RT restrictions;

RT service features;

service feature status;

or

the currently serving RTCS identification.

5. The method of claim 1 wherein the currently serving RTCS does not call the callback number until receipt of the RT subscriber'"'"'s page response.

6. The method of claim 1 wherein the non-serving RTCS is any RTCS within the RTN, not currently providing the RT subscriber with radio coverage and which provides incoming call entry into the RTN.