Inventor

ELLSWORTH MATTHEW R

US3 patents

Patents

3 patents

US8645840B2Feb 4, 2014

Multiple user GUI

ELLSWORTH MATTHEW R6 citations73

US8798248B2Aug 5, 2014

Intelligent call log and schedule integration

ELLSWORTH MATTHEW R0 citations46

US9232055B2Jan 5, 2016

SIP presence based notifications

ELLSWORTH MATTHEW R0 citations34