<html><head></head><body bgcolor="#FFFFFF"><div>Dava-me jeito era esse serviço em Portugal. Já houve mas por algum motivo, talvez por falta de utilizadores, deixou de existir. <br><br>No dia 21/11/2012, às 14:17, João Gonçalves Costa <<a href="mailto:joao.a.costa@ctt.pt">joao.a.costa@ctt.pt</a>> escreveu:<br><br></div><div></div><blockquote type="cite"><div>
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<p class="MsoNormal"><span lang="EN-US">AT&T relaunches walkie-talkie style service Push to Talk<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Cell-Phone Push-To-Talk services were once promoted by Nextel, now AT&T is introducing LTE Enhanced PTT.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Writing on The Register Bill Ray reports that although Push To Talk was the talk of the telecoms town a decade ago, it never took off in Europe. But in America it soldiers on and could pick up with the launch of AT&T's
next-generation service, Enhanced PTT, which runs on its AT&T's LTE network.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Read his article at <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><a href="http://www.theregister.co.uk/2012/11/19/ptt_relaunch/">http://www.theregister.co.uk/2012/11/19/ptt_relaunch/</a><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Nextel Walke-Talkie<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><a href="http://electronics.howstuffworks.com/question530.htm">http://electronics.howstuffworks.com/question530.htm</a><o:p></o:p></span></p>
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