-
-
-
Was an invention by Philipp Reis inspired by a French article in 1854 (by Charles Bourseul) on how to create microphone-like devices
-
A telephone exchange is a telecommunications system used in the public switched telephone network or in large enterprises.
-
Speaking to other people over radio waves.
-
implements a signaling technology in telecommunications known as pulse dialing.
-
Uses real-time video and audio
-
-
-
-
Plan projects on a visual timeline
Map milestones, phases, deadlines, and key events in one place so the sequence is easier to see and share. Timetoast is a timeline maker for work, school, research, and stories.