Patent · US Expired

Method and devices for dialling services

US6757539B2 · kind B2 · utility

8Cited by

8References

10Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Martin Kaibel · Herzogenrath, DE
Heinz-Peter Keutmann · Eschweiler, DE
Peter Kobriger · Aachen, DE

Key dates

Filing date	Nov 29, 2000
Grant date	Jun 29, 2004
Priority date	—
Expiry date	Mar 21, 2022

Classification

Technology area (CPC H)Electricity
CPC primaryH04W76/50
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A method and devices for dialling services in a mobile telecommunication network include a set of stored character strings used for comparison with character strings entered by a subscriber to call a service is modified, if a mobile user equipment switches from or to a visited telecommunication network.

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