Patent · US Expired

Protocol adaptation

US5311590A · kind A · utility

5Cited by

4References

2Claims

0Family size

Assignee

Alcatel N.V. · NL

Inventors

Wolfgang Arnold · Murrhardt, DE
Rudolf Hoyler · Leonberg, DE

Key dates

Filing date	Mar 5, 1992
Grant date	May 10, 1994
Priority date	—
Expiry date	Mar 5, 2012

Classification

Technology area (CPC H)Electricity
CPC primaryH04Q2213/109
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

A telecommunications terminal is provided with two protocols. After initialization and activation of one of the protocols, a status inquiry is sent to a digital exchange indicating the activated protocol. The telecommunications terminal is operated according to a received status message indicating the protocol being used by the digital exchange, or if none is received before elapse of a timer, according to the second of the two protocols.

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