The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 20, 1999

Filed:

Aug. 07, 1996
Applicant:
Inventor:

Walter Ghisler, Upplands Vasby, SE;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04M / ; H04Q / ;
U.S. Cl.
CPC ...
455414 ; 455463 ; 455464 ; 455455 ; 455450 ; 455555 ; 370442 ;
Abstract

In a radio communication system including at least one radio base station and at least two telephones connected to a radio terminal, simultaneous multiple calls may be set up between the radio base station and the radio terminal. An adaptor connects the telephones to the radio terminal that is connected over a radio air-interface to the radio base station. For an outgoing call originating from one of the telephones, the adaptor senses when a particular telephone goes off-hook and signals this information to the radio base station via the radio terminal and a control channel of the radio air-interface. Then, a first traffic channel is set up between the radio base station and the radio terminal. The telephone that has gone off-hook is connected to the established traffic channel via an adaptor. Once a first traffic channel is established for a first call, signalling that a second call is to be set up may be transmitted across the first traffic channel without terminating the first call. The second call is then set up on a different traffic channel.


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