TECHNIQUE FOR DYNAMICALLY CHANGING AN ISDN CONNECTION DURING A HOST SESSION
 Inventors: Thomas R. Farese, Spring Lake;
Kenneth E. Ferrere, Howell, both of
 Assignee: Bell Communications Research, Inc.,
 Appl. No.: 335,542
 Filed: Apr. 10, 1989
 Int. CI.* H04J3/12
 U.S. CI 370/58.1; 370/110.1
 Field of Search 370/16, 94.1, 58.1,
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Primary Examiner—Douglas W. Olms
Assistant Examiner—Melvin Marcelo
Attorney, Agent, or Firm—James W. Falk
A technique is disclosed for use in conjunction with an ISDN communications system for permitting a host computer, that is executing a host session with a user and is connected through the system, to dynamically change an ISDN access path, that connects the user to the host computer and carries the host session therebetween, between a packet switched connection and a circuit switched connection during the occurrence of the session in order to provide the particular connection that is most suited to the communication requirements of a task currently being executed during the session by the host computer. Any such dynamic change of the ISDN access path is invoked by the host computer, does not disrupt the host session and is substantially transparent to the user.
16 Claims, 12 Drawing Sheets