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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">I am assuming that by “wireless only” you mean using Wi-Fi for PBX extensions. Ditching the PBX and giving everybody cellphones would
also be “wireless only” but probably only feasible for very small deployments. I use it at home. ;-)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Wi-Fi uses license-exempt radio spectrum, which means a Wi-Fi-only deployment would have a pretty gaping question mark in terms of
how much reliability and consistency you could actually guarantee. It is a finite amount of shared bandwidth and you have no control over who you share it with or what they do with it.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">In practice, there are probably decent deployments of VoIP over Wi-Fi that work well. But in theory, there is no way you could ever
come up with specific reliability guarantees since the entire Layer 1 is not under your control and is inherently best-effort.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><a href="http://www.ic.gc.ca/eic/site/smt-gst.nsf/eng/sf08655.html">http://www.ic.gc.ca/eic/site/smt-gst.nsf/eng/sf08655.html</a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">“It should be understood that, unlike licensed radio systems that are provided some assurance of interference-free operation by Industry
Canada, licence-exempt radio devices operate on a strict ‘no-interference, no-protection’ basis in relation to all other radio systems. This means that licence-exempt radio devices are neither permitted to cause interference, nor can they claim protection
from any that they may receive. It is for this reason that Industry Canada will not normally investigate reports of radio interference affecting licence-exempt radio devices.”<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">--
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Mike Norton<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">I.T. Specialist<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Peace Wapiti School Division No. 76<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><a name="_MailEndCompose"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></a></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> cisco-voip [mailto:cisco-voip-bounces@puck.nether.net]
<b>On Behalf Of </b>Lelio Fulgenzi<br>
<b>Sent:</b> January-29-15 10:53 AM<br>
<b>To:</b> Cisco-voip (cisco-voip@puck.nether.net)<br>
<b>Subject:</b> [cisco-voip] cutting the cord... going wireless<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-size:10.0pt;font-family:"Verdana",sans-serif;color:black"><br>
Has anyone deployed a wireless only voice deployment, either as a retrofit or greenfield?<br>
<br>
I'm going to be leading a discussion that considers "cutting the cord" so to speak and one thing that will come up will be phones. I know that Cisco has a few(?) wireless options for desk sets, but considering the pervasiveness of mobile devices, maybe this
isn't even an issue?<br>
<br>
Any information or feed back would be greatly appreciated.<br>
<br>
Thanks!<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Verdana",sans-serif;color:black">---<br>
Lelio Fulgenzi, B.A.<br>
Senior Analyst, Network Infrastructure<br>
Computing and Communications Services (CCS)<br>
University of Guelph<br>
<br>
519</span><span style="font-size:10.0pt;font-family:"Cambria Math",serif;color:black">‐</span><span style="font-size:10.0pt;font-family:"Verdana",sans-serif;color:black">824</span><span style="font-size:10.0pt;font-family:"Cambria Math",serif;color:black">‐</span><span style="font-size:10.0pt;font-family:"Verdana",sans-serif;color:black">4120
Ext 56354<br>
</span><a href="mailto:lelio@uoguelph.ca"><span style="font-size:10.0pt;font-family:"Verdana",sans-serif">lelio@uoguelph.ca</span></a><span style="font-size:10.0pt;font-family:"Verdana",sans-serif;color:black"><br>
</span><a href="http://www.uoguelph.ca/ccs"><span style="font-size:10.0pt;font-family:"Verdana",sans-serif">www.uoguelph.ca/ccs</span></a><span style="font-size:10.0pt;font-family:"Verdana",sans-serif;color:black"><br>
Room 037, Animal Science and Nutrition Building<br>
Guelph, Ontario, N1G 2W1<o:p></o:p></span></p>
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