Packet telephony across the public switched telephone network
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United States of America Patent
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Oct 5, 2010
Grant Date -
N/A
app pub date -
Jan 31, 2001
filing date -
Jan 31, 2001
priority date (Note) -
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status (Latency Note)
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Abstract
A network device that allows packet relay across a public switched telephone network. The network device has a converter operable to convert a packet data stream to a public switched telephone network data stream. The converter may be a voice codec or a modem, as examples. The network device also includes a controller that can send signals in the public switched telephone network data stream identifying the network device as a packet device, receive signals indicating at least one other network devices are participating in a public switched transmission session with the network device, and then send the packet data stream across the public switched transmission network directly to the at least one other network device.
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