http://www.newlc.com/Push-to-talk.html Comments for "Push-to-talk" en http://www.newlc.com/Push-to-talk.html <div class="spip-content">There is an alternative to circuit-switched voice calls that has become very popular recently, especially in the US. It is called push-to-talk (PTT). Push-to-talk over Cellular (PoC) is a half-duplex, two-way communication service. It basically works like a walkie-talkie, where only one participant at a time is allowed to speak....</div><p><a href="http://www.newlc.com/Push-to-talk.html">read more</a></p> http://www.newlc.com/Push-to-talk.html#comments Fri, 25 Nov 2005 09:05:41 +0100 emcc 740 at http://www.newlc.com