Patent · US Active

Call block disabler

US7657009B2 · kind B2 · utility

3Cited by

11References

17Claims

0Family size

Assignee

AT&T Intellectual Property I, L.P. · US

Inventors

Jennifer Joy · Santa Cruz, US
Markus Weber · Solothurn, CH
Thomas Scholl · New Haven, US

Key dates

Filing date	May 16, 2006
Grant date	Feb 2, 2010
Priority date	—
Expiry date	Apr 18, 2028

Classification

Technology area (CPC H)Electricity
CPC primaryH04M2201/18
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

A dial tone generator outputs a particular dial tone to a party to indicate that a call block feature is enabled for the party. The call block feature is disabled for the party in response to a number of incoming calls for the party being greater than or equal to a threshold.

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