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CRYSTAL VOICE COMMUNICATIONS, INC
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SANTA BARBARA, CA, US
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Patent Grant
Null-packet transmission from inside a firewall to open a communica...
Patent number
6,978,383
Issue date
Dec 20, 2005
Crystal Voice Communications
Steven C. Boyle
H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Patents Applications
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Patent Application
Automatic volume control for voice over internet
Publication number
20020173864
Publication date
Nov 21, 2002
CRYSTAL VOICE COMMUNICATIONS, INC
Shawn W. Smith
G06 - COMPUTING CALCULATING COUNTING