You seem to be suggesting that there is a technical reason the carriers don't do this. There is not. Carriers prioritize voice channels, which really are just data also, though not using SIP. They *could* choose to prioritize data, or do the usual QoS for the data so VoIP has good quality, just like any other IP connection. They won't, because it's a huge threat to their business model.<div>
<br><br><div class="gmail_quote">On Tue, Sep 13, 2011 at 9:07 PM, Paul Timmins <span dir="ltr"><<a href="mailto:paul@timmins.net">paul@timmins.net</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div style="word-wrap:break-word"><div>My android phones do SIP user interface integration over HSDPA and EVDO respectively, and frankly, the voice quality isn't that great. Much worse than the underlying GSM or CDMA signal bar for signal bar.</div>
<div><br></div><div>There's a reason the carriers aren't doing this yet.</div><div>-Paul</div><div><div></div><div class="h5"><br><div><div>On Sep 13, 2011, at 11:32 PM, Scott Berkman wrote:</div><br><blockquote type="cite">
<span style="border-collapse:separate;font-family:Helvetica;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:-webkit-auto;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;font-size:medium"><div lang="EN-US" link="blue" vlink="purple">
<div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman', serif"><span style="font-size:11pt;font-family:Calibri, sans-serif;color:rgb(31, 73, 125)">You might want to see if LightSquared has anything for you, they dub themselves the “only wholesale-only mobile carrier”, but I’m not sure what they can offer today.<u></u><u></u></span></div>
<div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman', serif"><span style="font-size:11pt;font-family:Calibri, sans-serif;color:rgb(31, 73, 125)"><u></u> <u></u></span></div>
<div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman', serif"><span style="font-size:11pt;font-family:Calibri, sans-serif;color:rgb(31, 73, 125)"><a href="http://www.lightsquared.com/" style="color:blue;text-decoration:underline" target="_blank">http://www.lightsquared.com/</a><u></u><u></u></span></div>
<div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman', serif"><span style="font-size:11pt;font-family:Calibri, sans-serif;color:rgb(31, 73, 125)"><u></u> <u></u></span></div>
<div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman', serif"><span style="font-size:11pt;font-family:Calibri, sans-serif;color:rgb(31, 73, 125)">Also, aren’t some of the newer cellular technologies (UMTS or EVDO) inherently built on SIP for the voice portion of the network? That’s not an answer to your problem, but…<u></u><u></u></span></div>
<div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman', serif"><span style="font-size:11pt;font-family:Calibri, sans-serif;color:rgb(31, 73, 125)"><u></u> <u></u></span></div>
<div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman', serif"><span style="font-size:11pt;font-family:Calibri, sans-serif;color:rgb(31, 73, 125)">One other thing you might want to look into is an OS that allows the default phone app to use SIP over the data connection natively (as opposed to using a separate soft phone application that might not integrate as well to the UI). I believe this was preset in versions of WM6, but that’s somewhat old now and I have no idea if it’s built into any other platforms.<u></u><u></u></span></div>
<div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman', serif"><span style="font-size:11pt;font-family:Calibri, sans-serif;color:rgb(31, 73, 125)"><u></u> <u></u></span></div>
<div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman', serif"><span style="font-size:11pt;font-family:Calibri, sans-serif;color:rgb(31, 73, 125)"><a href="http://voipguides.blogspot.com/2008/05/voip-sip-client-for-windows-mobile-6.html" style="color:blue;text-decoration:underline" target="_blank">http://voipguides.blogspot.com/2008/05/voip-sip-client-for-windows-mobile-6.html</a><u></u><u></u></span></div>
<div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman', serif"><span style="font-size:11pt;font-family:Calibri, sans-serif;color:rgb(31, 73, 125)"><u></u> <u></u></span></div>
<div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman', serif"><span style="font-size:11pt;font-family:Calibri, sans-serif;color:rgb(31, 73, 125)">-Scott<u></u><u></u></span></div>
<div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman', serif"><span style="font-size:11pt;font-family:Calibri, sans-serif;color:rgb(31, 73, 125)"><u></u> <u></u></span></div>
<div style="border-right-style:none;border-bottom-style:none;border-left-style:none;border-width:initial;border-color:initial;border-top-style:solid;border-top-color:rgb(181, 196, 223);border-top-width:1pt;padding-top:3pt;padding-right:0in;padding-bottom:0in;padding-left:0in">
<div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman', serif"><b><span style="font-size:10pt;font-family:Tahoma, sans-serif">From:</span></b><span style="font-size:10pt;font-family:Tahoma, sans-serif"><span> </span><a href="mailto:voiceops-bounces@voiceops.org" target="_blank">voiceops-bounces@voiceops.org</a> [mailto:<a href="mailto:voiceops-bounces@voiceops.org" target="_blank">voiceops-bounces@voiceops.org</a>]<span> </span><b>On Behalf Of<span> </span></b>Carlos Alvarez<br>
<b>Sent:</b><span> </span>Tuesday, September 13, 2011 3:44 PM<br><b>To:</b><span> </span><a href="mailto:VoiceOps@voiceops.org" target="_blank">VoiceOps@voiceops.org</a><br><b>Subject:</b><span> </span>Re: [VoiceOps] Cell Phone to SIP provider<u></u><u></u></span></div>
</div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman', serif"><u></u> <u></u></div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman', serif">
It is my understanding that:<u></u><u></u></div><div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman', serif"><u></u> <u></u></div></div>
<div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman', serif">a. The original post asked about sending the calls to the end point (cell phone) as SIP, not cellular voice.<u></u><u></u></div>
</div><div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman', serif"><u></u> <u></u></div></div><div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman', serif">
b. Sprint's MIS (Mobile Integration Service) merely allows a company or service provider to connect to them directly over TDM or SIP and do seamless integration of the cell and other phones, but the call is still cellular voice to the handset.<u></u><u></u></div>
</div><div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman', serif"><u></u> <u></u></div></div><div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman', serif">
I am facing a competitive sale right now to a municipality where there is only one other carrier who can compete with us, and only on that one feature.<u></u><u></u></div></div><div><p class="MsoNormal" style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:12pt;font-size:12pt;font-family:'Times New Roman', serif">
<u></u> <u></u></p><div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman', serif">On Tue, Sep 13, 2011 at 12:33 PM, Matthew S. Crocker <<a href="mailto:matthew@corp.crocker.com" style="color:blue;text-decoration:underline" target="_blank">matthew@corp.crocker.com</a>> wrote:<u></u><u></u></div>
<div><div><p class="MsoNormal" style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:12pt;font-size:12pt;font-family:'Times New Roman', serif"><span style="color:black">Sprint does this. The cell phones register to the cell tower as cell phones. The cell tower converts to SIP and registers with the call agent. Broadsoft mentioned something about this at the last connections conference. You would get a private IP connection into Sprint to carry the voice traffic. This would be perfect for me if Sprint had a decent cell network in my area. Does anyone know if AT&T or Verizon (LTE) do it as well?<br>
<br><a href="http://newsroom.sprint.com/article_display.cfm?article_id=1628" style="color:blue;text-decoration:underline" target="_blank">http://newsroom.sprint.com/article_display.cfm?article_id=1628</a><br><br><u></u><u></u></span></p>
<div class="MsoNormal" align="center" style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman', serif;text-align:center"><span style="color:black"><hr size="2" width="100%" align="center">
</span></div><blockquote style="border-top-style:none;border-right-style:none;border-bottom-style:none;border-width:initial;border-color:initial;border-left-style:solid;border-left-color:rgb(16, 16, 255);border-left-width:1.5pt;padding-top:0in;padding-right:0in;padding-bottom:0in;padding-left:4pt;margin-left:3.75pt;margin-top:5pt;margin-bottom:5pt">
<div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman', serif"><b><span style="font-family:Helvetica, sans-serif;color:black">From:<span> </span></span></b><span style="font-family:Helvetica, sans-serif;color:black">"Oren Yehezkely" <<a href="mailto:orenyny@gmail.com" style="color:blue;text-decoration:underline" target="_blank">orenyny@gmail.com</a>><br>
<b>To:<span> </span></b>"<a href="mailto:VoiceOps@voiceops.org" style="color:blue;text-decoration:underline" target="_blank">VoiceOps@voiceops.org</a>" <<a href="mailto:voiceops@voiceops.org" style="color:blue;text-decoration:underline" target="_blank">voiceops@voiceops.org</a>><br>
<b>Sent:<span> </span></b>Tuesday, September 13, 2011 1:00:02 PM<br><b>Subject:<span> </span></b>[VoiceOps] Cell Phone to SIP provider<u></u><u></u></span></div><div><div><p class="MsoNormal" style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:12pt;font-size:12pt;font-family:'Times New Roman', serif">
<span style="font-family:Helvetica, sans-serif;color:black"><br><br>Hello,<br><br>I am looking for a cell phone company that is capable of providing SIP service instead of sending the calls over the cellular network.<br><br>
If anybody here is capable of providing such a service or can recommend a vendor that can do that, please let me know.<br><br>Thanks,<br><br>Oren<u></u><u></u></span></p></div></div><div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman', serif">
<span style="font-family:Helvetica, sans-serif;color:black">_______________________________________________<br>VoiceOps mailing list<br><a href="mailto:VoiceOps@voiceops.org" style="color:blue;text-decoration:underline" target="_blank">VoiceOps@voiceops.org</a><br>
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<span style="color:black"><u></u> <u></u></span></div></div></div><p class="MsoNormal" style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:12pt;font-size:12pt;font-family:'Times New Roman', serif">
<br>_______________________________________________<br>VoiceOps mailing list<br><a href="mailto:VoiceOps@voiceops.org" style="color:blue;text-decoration:underline" target="_blank">VoiceOps@voiceops.org</a><br><a href="https://puck.nether.net/mailman/listinfo/voiceops" style="color:blue;text-decoration:underline" target="_blank">https://puck.nether.net/mailman/listinfo/voiceops</a><u></u><u></u></p>
</div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman', serif"><br><br clear="all"><u></u><u></u></div><div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman', serif">
<u></u> <u></u></div></div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman', serif">--<u></u><u></u></div><div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman', serif">
Carlos Alvarez<u></u><u></u></div></div><div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman', serif">TelEvolve<u></u><u></u></div></div>
<div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman', serif"><a href="tel:602-889-3003" value="+16028893003" target="_blank">602-889-3003</a><u></u><u></u></div>
</div><div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman', serif"><u></u> <u></u></div></div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman', serif">
<u></u> <u></u></div></div></div>_______________________________________________<br>VoiceOps mailing list<br><a href="mailto:VoiceOps@voiceops.org" target="_blank">VoiceOps@voiceops.org</a><br><a href="https://puck.nether.net/mailman/listinfo/voiceops" target="_blank">https://puck.nether.net/mailman/listinfo/voiceops</a></div>
</span></blockquote></div><br></div></div></div></blockquote></div><br><br clear="all"><div><br></div>-- <br><div>Carlos Alvarez</div><div>TelEvolve</div><div>602-889-3003</div><div><br></div><br>
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