Inventor
LIU GAO FENG
CA2 patents
Patents
2 patentsUS10602241B2Mar 24, 2020
Method, system network and computer-readable media for controlling outgoing telephony calls to cause initiation of call features
LIU GAO FENG0 citations31
US8531992B2Sep 10, 2013
Method, system, network and computer-readable media for controlling outgoing telephony calls to convey media messages to source devices
LIU GAO FENG0 citations31