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<p class=MsoNormal>What is DC Offset in the receive (DAC) path? What are the
symptoms?<o:p></o:p></p>

<p class=MsoNormal><o:p>&nbsp;</o:p></p>

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  <p class=pb1body1 style='mso-margin-top-alt:.75pt;margin-right:0in;
  margin-bottom:4.5pt;margin-left:0in'><span class=cxrefcolor><span
  style='font-size:9.0pt;font-family:"Arial","sans-serif";color:blue'><a
  href="http://tools.cisco.com/Support/BugToolKit/search/getBugDetails.do?method=fetchBugDetails&amp;bugId=CSCsx02046"><span
  style='color:#003399'>CSCsx02046</span></a></span></span><span
  style='font-size:9.0pt;font-family:"Arial","sans-serif";color:black'><o:p></o:p></span></p>
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  <p class=pb1body1 style='mso-margin-top-alt:.75pt;margin-right:0in;
  margin-bottom:4.5pt;margin-left:0in'><a name=wp156985></a><span
  style='font-size:9.0pt;font-family:"Arial","sans-serif";color:black'>Receive
  DC offset may trigger idle tones on Cisco Unified IP Phone 7975G, 7965G,
  7962, 7945G, and, 7942G<o:p></o:p></span></p>
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<p class=MsoNormal><o:p>&nbsp;</o:p></p>

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  <p class=MsoNormal><b><span style='font-size:8.5pt;font-family:"Times New Roman","serif";
  color:black'>Receive dc offset may trigger idle tones on 7942/64/45/65/75</span></b><span
  style='font-size:8.5pt;font-family:"Times New Roman","serif";color:black'><o:p></o:p></span></p>
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  <p class=MsoNormal><b><span style='font-size:8.5pt;font-family:"Times New Roman","serif";
  color:black'>Symptom</span></b><span style='font-size:8.5pt;font-family:"Times New Roman","serif";
  color:black'>:<br>
  dsp may introduce a dc offset in the receive (DAC) path.</span><span
  style='font-size:8.5pt;font-family:"Times New Roman","serif";color:black'>&nbsp;</span><span
  style='font-size:8.5pt;font-family:"Times New Roman","serif";color:black'><br>
  <br>
  <b>Condition</b>s:<br>
  handset mode (possibly other modes).<br>
  <br>
  <b>Workaround</b>:<br>
  none<o:p></o:p></span></p>
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<p class=MsoNormal><o:p>&nbsp;</o:p></p>

<p class=MsoNormal><o:p>&nbsp;</o:p></p>

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