I ran across a documentary regarding Walter Shaw that I just had to share. I had read a little bit about Walter Shaw and his history with AT&T, but I had no idea just how much he really changed the industry. If you like documentaries about technology as much as I do your going to want to check this out. This is a real eye opener.  

Walter Shaw

Telecommunications PatentsGOH

  • Call Forwarding
  • Touch Tone Dialing
  • Conference Calling
  • The Speakerphone
  • Voice Recognition
  • White House Alert System
  • The Answering Machine

Unfortunately his work never earned him any great fortune or respect. While employed by AT&T / Bell Labs the largest Telecommunications monopoly in the US at the time literately forced him out which eventually stopped him from realizing his dream and making AT&T even more powerful. During his lifetime Walter Shaw filed for 39 patents which many of them advanced cutting edge solutions in Telecommunications industry which we now use today. 

US Patent # 2.575.844

  • Feedback Neutralization for Telephone Systems

US Patent # 2.844.659

  • Two Way Communication Unit or Speakerphone

US Patent # 3.389.224

  • Conference Calling

US Patent # 3.406.261

  • Telephone Switchboard Call Transfer

US Patent # 3.535.373

  • Conference Calling with Call Forwarding

US Patent # 2.591.727

  • Call Forwarding without conferencing