Patent · US Expired

Telephone switching system and method

US6560464B1 · kind B1 · utility

0Cited by

14References

23Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Helmut Rau · Germering, DE
Udo Klotz · Schwanau, DE
Franz Egger · Munich, DE
Bernd Schneider · Wiesbaden, DE

Key dates

Filing date	Nov 15, 1999
Grant date	May 6, 2003
Priority date	—
Expiry date	Nov 15, 2019

Classification

Technology area (CPC H)Electricity
CPC primaryH04W84/16
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A telephone switching system and method for switching CENTREX (CTX) calls between CTX subscribers, is provided in which the CTX subscribers comprise mobile subscribers and wired subscribers. A message interface for the transmission of CTX-specific information is established between the mobile switching center allocated to the mobile subscribers and the fixed network switching center allocated to the wired CTX subscribers, and the control of the mobile switching center is supplemented by a control part for the CTX-specific mobile call processing.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.