Inventor

JEONG MAN SU

KR3 patents

Patents

3 patents

US6618369B1Sep 9, 2003

Internet phone protocol

LG ELECTRONICS INC21 citations89

US6819664B1Nov 16, 2004

Voice communication system

LG ELECTRONICS INC25 citations88

US6801540B1Oct 5, 2004

Internet phone-based private exchange and call signal exchanging method thereof

LG ELECTRONICS INC25 citations88