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EP0865219A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Arrangement for mobile telephony

Assignee: Telia Co AB
•
Filing: 1998-03-09
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Granted: —
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Expires: 2018-03-09
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Abstract

Abstract The invention relates to an arrangement for mobile telephony and more exactly an arrangement to utilize mobile telephone systems in office telephony applications. The invention especially can make possible a combination of local mobility under a private branch exchange (PBX) and ordinary mobile telephony with the same terminal, i.e. mobile telephone. According to the invention the arrangement has a subsystem which includes a base station system (BSS) which is of mobile telephony type for communication with mobile terminals, a mobility server to handle the base station system and provide access to at least one public telecommunications system (PSTN) and one private branch exchange (PBX) to provide PBX-functions in the subsystem. The mobile terminals by that will become mobile locally under the private branch exchange. Preferably the mobility server also provides access to at least one public mobile telephone system (PLMN), at which the mobile terminals are also mobile under the public mobile telephone system.

Inventors

  • 👤 Christer Björk

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-28 12:32
CPC Classifications
H; H04; H04W; H04W84/00; H04W84/02; H04W84/10; H04W84/16; H04W8/00; H04W8/02; H04W8/04

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 68 words
Arrangement for mobile telephony, characterized in that a subsystem including a base station system (BSS) for communication with mobile terminals, a mobility server to handle the base station system and provide access to at least one public telecommunications system (PST; PLMN), and a private branch exchange (PBX) to provide PBX-functions in the subsystem, at which the mobile terminals (Term.) are mobile locally under the private branch exchange device.
Claim 2
Dependent Claim 37 words
Arrangement according to patent claim 1, characterized in that the mobility server provide access to at least one public mobile telephone system (PLMN), at which the mobile terminals also are mobile under the public mobile telephone system.
Claim 3
Dependent Claim 25 words
Arrangement according to patent claim 2, characterized in that the terminals are automatically switched between local mobility and mobility under the public mobile telephone system.
Claim 4
Dependent Claim 24 words
Arrangement according to patent claim 2 or 3, characterized in that the mobile terminals have a terminal identity in the public mobile telephone system.
Claim 5
Dependent Claim 24 words
Arrangement according to any of the previous patent claims, characterized in that the mobility server includes routing device and a customer controlled network database.
Claim 6
Dependent Claim 29 words
Arrangement according to any of the previous patent claims, characterized in that the base station system (BSS) is one of the types GSM 900, DCS 1800, D-AMPS or PDC.
Claim 7
Dependent Claim 34 words
Arrangement according to any of the previous patent claims, characterized in an interface between the mobility server and the public mobile telephone system, which interface is of one of the types MAP/ISUP or DSS.1+.
Claim 8
Dependent Claim 23 words
Arrangement according to any of the previous patent claims, characterized in that the subsystem for instance utilizes QSIG-signalling to the private branch exchange.

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