Inventor
SUN SHIRLEY
US6 patents
Patents
6 patentsUS6956848B1Oct 18, 2005
Computer network-based auto-attendant method and apparatus
ALTIGEN COMMUNICATIONS INC38 citations90
US6754202B1Jun 22, 2004
Network call-back data capture method and apparatus
ALTIGEN COMMUNICATIONS INC18 citations89
US7058047B2Jun 6, 2006
Network call-back data capture method and apparatus
ALTIGEN COMMUNICATIONS INC10 citations71
US7308092B1Dec 11, 2007
Method for connecting calls directed to a PSTN extension to a handset of a packet switched network
ALTIGEN COMMUNICATIONS INC5 citations60
US6766006B1Jul 20, 2004
Personal auto attendant apparatus and method
ALTIGEN COMMUNICATIONS INC4 citations60
US7280649B2Oct 9, 2007
Personal auto attendant apparatus and method
ALTIGEN COMMUNICATIONS INC1 citations49