Unrestricted calling circle for telephone service
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United States of America Patent
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-
Sep 11, 2012
Grant Date -
May 15, 2008
app pub date -
Nov 15, 2006
filing date -
Nov 15, 2006
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Subscribers of a telephone service can define a calling circle, which includes a group of other telephone subscribers with whom the subscriber receives preferential billing rates. The members of the calling circle may include customers of a telephone service provider other than the subscriber's telephone service provider.
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