Assignee
HWANG SHAW HWA
TW·7 granted patents·24 citations·filing 2006–2011
Top patents by PatentIndex Score
7 records- 0181US7751387B2Modified NAT firewall traversal method for SIP communicationHWANG SHAW-HWA·Filed 2006·Granted Jul 6, 2010·14 cites·13 claims
- 0269US8204183B2Method, apparatus, and computer readable medium thereof for enabling an internet extension to ring a conventional extensionHWANG SHAW-HWA·Filed 2008·Granted Jun 19, 2012·5 cites·20 claims
- 0363US8279855B2Method for dialing between internet extensionsHWANG SHAW HWA·Filed 2009·Granted Oct 2, 2012·2 cites·1 claims
- 0458US8676933B2NAT traversal method in session initial protocolHWANG SHAW HWA·Filed 2009·Granted Mar 18, 2014·2 cites·1 claims
- 0555US8700785B2SIP communication protocolHWANG SHAW HWA·Filed 2011·Granted Apr 15, 2014·1 cites·1 claims
- 0651US8488595B2System for dialing from internet extension to conventional extensionHWANG SHAW HWA·Filed 2009·Granted Jul 16, 2013·0 cites·3 claims
- 0739US8625759B2Method of telephone switchboard for connecting directly the callback to the extension of the original callerHWANG SHAW HWA·Filed 2011·Granted Jan 7, 2014·0 cites·4 claims
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