Dual-tone multi-frequency signal transfer protocol
Dynamic callback technique
Dynamic callback technique
Dynamic frequency passband switching in home phone-line...
Dynamically changeable menus based on externally available data
Dynamically configurable communications network
E-mail paging system
E-mail processing system and method
E-mail server of a provider of e-mail services
Easy response system
EKG telemetry base station
Electric outlet based power status notification device,...
Electronic conference system and conference server apparatus
Electronic devices and programming methods therefor
Electronic directory and entry control system
Electronic document answering machine
Electronic document management system and method
Electronic document management system and method
Electronic information lockout device
Electronic information transmitting apparatus with reviewable tr