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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">If they are currently doing 24 km then there probably are (or ought to be) inductive loading coils every so often in order to counteract
the capacitance of the cable. Otherwise the sound quality would be <a name="_MailEndCompose">
lousy (high-frequency loss) no matter what equipment is on the end.<o:p></o:p></a></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">I’m guessing that the reason Cisco gives 3.4 km as the max supported by the VIC3-2FXS-E/DID is because by that point you need to be
thinking about engineering loading coils into your cable plant. If the cable plant is well-designed, it would probably be fine for much longer distances.<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">Of course, the distinction between “probably fine” and “officially supported” can sometimes be an issue. ;-)<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">I don’t know any specific products, but one possible avenue to pursue might be a third-party DS1 channel bank of some sort. I’m guessing
that in that arena, you’d be more likely to find something that officially supports mega distances. Then supply it with dialtone from a T1/E1 card in your Cisco gateway of choice.<o:p></o:p></span></p>
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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">-mn<o:p></o:p></span></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>Louis Koekemoer (ZA)<br>
<b>Sent:</b> June-22-16 2:23 PM<br>
<b>To:</b> Brian Meade <bmeade90@vt.edu><br>
<b>Cc:</b> cisco-voip@puck.nether.net<br>
<b>Subject:</b> Re: [cisco-voip] Max length for analogue<o:p></o:p></span></p>
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<p class="MsoNormal">I need this for the mining industry. They currently have a old Nortel and claim it does about 24km. I now need to try and match that on Cisco. <o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;color:#575757">Sent from my Samsung device<o:p></o:p></span></p>
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<br>
-------- Original message --------<br>
From: Brian Meade <<a href="mailto:bmeade90@vt.edu">bmeade90@vt.edu</a>> <br>
Date: 22/06/2016 21:55 (GMT+02:00) <br>
To: "Louis Koekemoer (ZA)" <<a href="mailto:Louis.Koekemoer@dimensiondata.com">Louis.Koekemoer@dimensiondata.com</a>>
<br>
Cc: <a href="mailto:cisco-voip@puck.nether.net">cisco-voip@puck.nether.net</a> <br>
Subject: Re: [cisco-voip] Max length for analogue <o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><o:p> </o:p></p>
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<p class="MsoNormal">It's different per device. FXS port is different than ATA186 which is different than VG224. Do you already have an FXS port or ATA you're planning to use?
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<p class="MsoNormal">Here's calculations for the ATA186- <a href="https://communities.cisco.com/docs/DOC-10122">https://communities.cisco.com/docs/DOC-10122</a><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Wed, Jun 22, 2016 at 3:50 PM, Louis Koekemoer (ZA) <<a href="mailto:Louis.Koekemoer@dimensiondata.com" target="_blank">Louis.Koekemoer@dimensiondata.com</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal">Hi all, <o:p></o:p></p>
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<p class="MsoNormal">What would be the maximum length one will be able to run an analogue extension or what device can one use to extend the length? <o:p></o:p></p>
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<p class="MsoNormal">Regards <o:p></o:p></p>
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<p class="MsoNormal">Louis <o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;color:#575757">Sent from my Samsung device<o:p></o:p></span></p>
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<span style="color:white">itevomcid</span> <o:p></o:p></p>
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