Inventor
MOON JUNG HUN
KR3 patents
Patents
3 patentsUS9456080B2Sep 27, 2016
Telephone system based on presence and call routing method thereof
MOON JANG WON3 citations66
US8737382B2May 27, 2014
Network operator brokering system and telephone system for providing optimal routing path for voice call using the same and providing method thereof
MOON JANG WON2 citations56
US8880665B2Nov 4, 2014
Nonstop service system using voting, and information updating and providing method in the same
MOON JANG WON1 citations41