I had seen the so-called ‘PTT’ phones (Push To Talk) in the US but hadn’t realised how they worked until reading this article by Ashley Norris. They’re a wonderful combination of past, present & future technologies – walkie-talkies, cell phones, instant messaging, IP telephony.
(I found this, along with many other good things in the past, on the Guardian’s Onlineblog.com which is maintained by Neil McIntosh. Recommended.)
RSS feed
Recent Comments