Method and apparatus for authorization based phone calls in packet switched networks
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United States of America Patent
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-
Jun 11, 2002
Grant Date -
N/A
app pub date -
Jun 15, 1999
filing date -
Sep 14, 1998
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A call authorization system moves state maintenance for authorization based phone calls from a central authorization server to different gateways in a packet switched network. A simple authorization session protocol is used between the authorization server and the gateways to minimize network traffic. The authorization session protocol releases the authorization server from having to maintain states for open authorization based phone calls.
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