Method and apparatus for providing calling service features within incompletely upgraded cellular telephone networks
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United States of America Patent
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-
Nov 2, 1999
Grant Date -
N/A
app pub date -
Jun 7, 1996
filing date -
Jun 7, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
For a call received by an originating switching node in a cellular telephone network that does not support all upgraded calling service features, the call is redirected and transited for further handling to an upgraded service switching node. Alternatively, the call is redirected and transited only when the originating switching node has not been ungraded to support subscripted to calling service features or a certain initiated calling service feature. As another alternative, the call is handled by the originating switching node (i.e., through connected to a service switching node) up until such time as a calling service feature is initiated, and is then redirected and transited if the initiated calling service feature is not supported.
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