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<body class='hmmessage'><div dir='ltr'>I would replace the copper pair between the FXS port and the analog phone and then test again. If you are using a custom copper pair, try putting a few twists in the pair and then re-crimp/punch-down both ends. Is this FXS port under IOS control, stcapp or mgcpapp?<br><br><ul><li>If it truly is an audible artifact, it may in-fact be caller ID; Bell 202 AFSK transmits at 1200 baud half-duplex (1200Hz/2200Hz) between rings 1 and 2 (this is how CLID works on analog POTS lines).</li><ul><li>Does the called party hear this only if they pick up within 2 rings?</li><li>What happens if the called party waits for 4-5 rings before picking up?</li><li>Try "caller-id disable" on the voice-port and then test.</li></ul></ul><br><BR><ul><li>You could also try an antitinkle circuit (frequency filter). You would do this by adjusting the "ring frequency" on the FXS port.</li></ul><br><BR><ul><li>Another thing to try is adjusting the idle battery (line voltage) on the FXS port to a true -48V, if your FXS port supports it.</li></ul><br><BR><ul><li>Paste the voice-port and dial-peer config for the FXS port in question (and if it is MGCP/SCCP controlled, then the MGCP and SCCP portion of the config).</li></ul><br>Thanks,<br><br>Ryan<br><div><hr id="stopSpelling">From: mikenorton@pwsd76.ab.ca<br>To: michelmbperez@gmail.com; cisco-voip@puck.nether.net<br>Date: Fri, 19 Jun 2015 05:17:49 +0000<br>Subject: Re: [cisco-voip] Connection PLAR problem...<br><br>
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<p class="ecxMsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;">Are you certain it’s DTMF that you’re hearing, not caller ID? If you pick up too soon (before 2 rings) it could be possible you’re hearing caller ID.</span></p>
<p class="ecxMsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;"> </span></p>
<p class="ecxMsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;">Other than that, with analog phones, weirdness with onhook/offhook/ringing state is often a cabling issue, e.g. partial short, poor connection, or too long. Or
loopstart/groundstart is set incorrectly on the port.</span></p>
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<p class="ecxMsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;">-mn</span></p>
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<p class="ecxMsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;"> cisco-voip [mailto:cisco-voip-bounces@puck.nether.net]
<b>On Behalf Of </b>Michel L. M. B. Perez<br>
<b>Sent:</b> Thursday, June 18, 2015 7:46 AM<br>
<b>To:</b> cisco-voip@puck.nether.net<br>
<b>Subject:</b> [cisco-voip] Connection PLAR problem...</span></p>
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<p class="ecxMsoNormal">Hi guys,</p>
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<p class="ecxMsoNormal">I found a problem in my router 2911, i think that is a config mistake, let me try to explain.</p>
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<p class="ecxMsoNormal">In the beggining i thought that it was IOS problem so a made a upgrade from c2900-universalk9-mz.SPA.152-4.M6a.bin to version c2900-universalk9-mz.SPA.154-3.M3.bin</p>
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<p class="ecxMsoNormal">I have this same configuration at the some router on another interface an this is not happening.</p>
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<p class="ecxMsoNormal">Analog Phone -> FXS Post -> Branch_Router -> CUCM -> IP Phone [Call is completed, Voice is Working, No Problem]</p>
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<p class="ecxMsoNormal">IP Phone -> CUCM -> Branch_Router -> FXS port -> Analog Phone [Call is completed, Voice is Working, Problem]</p>
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<p class="ecxMsoNormal">When the remote users answer the call, in the beggining of the call i can hear a sound like the phone was trying to dial a number, for me seems that the router is not understanding that is an incoming call and when the user hang-up the
phone the router is trying to dial the number configured at connection plar at this voice port.</p>
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<p class="ecxMsoNormal">Anyone already have the same problem?</p>
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<p class="ecxMsoNormal">Thanks.</p>
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<p class="ecxMsoNormal">Michel Perez</p>
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<p class="ecxMsoNormal">Skype: michelmbperez</p>
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<p class="ecxMsoNormal"><a href="mailto:michelmbperez@gmail.com" target="_blank">michelmbperez@gmail.com</a></p>
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<p class="ecxMsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;"><a href="http://br.linkedin.com/in/michelmbperez" target="_blank">http://br.linkedin.com/in/michelmbperez</a></span></p>
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