Spoofing to preserve a communication link
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United States of America Patent
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Jan 31, 2006
Grant Date -
N/A
app pub date -
Jul 7, 2000
filing date -
Jul 7, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
A local communication layer is placed in communication with a remote communication layer via a communication link established between a local modem and a remote modem. The communication layers may, for instance, be PPP layers. The communication is then interrupted, for example, by being temporarily paused or being placed on hold. In one scenario, the communication is placed on hold by the remote modem, as a result of a call-waiting alert received by the remote modem. After the communication has been placed on hold, the local modem monitors PPP frames from the local PPP layer and spoofs the local PPP layer by way of responses to the local PPP layer requests as if such responses were made by the remote PPP layer.
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