<html><head></head><body bgcolor="#FFFFFF"><div>Have you wondered the problem is with the alternate gateway with that toll free line?</div><div><br></div><div>So far I have encounter 2 times whereby customer complain about voice quality issue while using isdn(!?!) but no problem with analog lines hosted in the same gateway. Both occasion are due to faulty telco equipment. <br><br>Sent from my iPhone<div>Pls pardon my fat fingers.</div></div><div><br>On 16 Mar, 2012, at 5:10 AM, Erick Wellnitz <<a href="mailto:ewellnitzvoip@gmail.com">ewellnitzvoip@gmail.com</a>> wrote:<br><br></div><div></div><blockquote type="cite"><div><div>I'm not a LAN/Ethernet QoS guru by any means. Our network group has control over QoS and I'm trying to get to the bottom of an issue we've seen routing calls over a sip trunk to a location using a 1gig Ethernet connection on a DWDM ring. No firewall is present. The configuration doesn't seem quite right to me for some reason.</div>
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<div>Basically what we are doing is using an alternate PSTN gateway for toll free traffic until we get additional capacity added to handle the calls. Users report garbled audio and an 'underwater' quality of the audio. Getting information from the phone on call quality (jitter, etc) may not help because the calls complained about are to an external conference bridge via tol lfree number.</div>
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<div>If this config checks out, I plan to ask the network team if they can capture some data for this particular link.</div>
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<div>Here is the local end QoS config:</div>
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<div><font color="#004080" size="3" face="Calibri"><font color="#004080" size="3" face="Calibri"><font color="#004080" size="3" face="Calibri">
<p dir="ltr">mls ip cef load-sharing full</p>
<p dir="ltr">mls netflow interface</p>
<p dir="ltr">mls qos map cos-dscp 0 8 16 24 32 46 48 56</p>
<p dir="ltr">mls qos</p>
<p dir="ltr">mls cef error action reset</p>
<p dir="ltr"> </p></font></font></font></div>
<div><font color="#004080" size="3" face="Calibri"><font color="#004080" size="3" face="Calibri"><font color="#004080" size="3" face="Calibri">
<p dir="ltr">interface GigabitEthernet3/43</p>
<p dir="ltr">description GIG 3/43 </p>
<p dir="ltr">ip address X.X.X.X X.X.X.X</p>
<p dir="ltr">ip flow ingress</p>
<p dir="ltr">ip pim sparse-dense-mode</p>
<p dir="ltr">ip summary-address eigrp 1 X.X.X X X.X.X.X</p>
<p dir="ltr">ip summary-address eigrp 1 X.X.X X X.X.X.X</p>
<p dir="ltr">ip summary-address eigrp 1 X.X.X X X.X.X.X</p>
<p dir="ltr">load-interval 30</p>
<p dir="ltr">wrr-queue bandwidth 30 40 30</p>
<p dir="ltr">wrr-queue queue-limit 40 30 15</p>
<p dir="ltr">wrr-queue threshold 2 60 80 100 100 100 100 100 100</p>
<p dir="ltr">wrr-queue threshold 3 60 80 100 100 100 100 100 100</p>
<p dir="ltr">wrr-queue random-detect min-threshold 1 40 60 80 80 80 80 80 80</p>
<p dir="ltr">wrr-queue random-detect max-threshold 1 70 80 100 100 100 100 100 100</p>
<p dir="ltr">no wrr-queue random-detect 2</p>
<p dir="ltr">no wrr-queue random-detect 3</p>
<p dir="ltr">wrr-queue cos-map 1 3 0</p>
<p dir="ltr">wrr-queue cos-map 2 1 1</p>
<p dir="ltr">wrr-queue cos-map 2 2 2</p>
<p dir="ltr">wrr-queue cos-map 2 3 4</p>
<p dir="ltr">wrr-queue cos-map 3 2 3</p>
<p dir="ltr">wrr-queue cos-map 3 3 6 7</p>
<p dir="ltr">mls qos trust dscp</p>
<p dir="ltr"> </p>
<p dir="ltr">Here is the remote end:</p><font color="#004080" size="3" face="Calibri"><font color="#004080" size="3" face="Calibri"><font color="#004080" size="3" face="Calibri">
<p dir="ltr">interface GigabitEthernet1/36</p>
<p dir="ltr">description GIGABIT E/NET 1/36 </p>
<p dir="ltr">ip address X.X.X.X X.X.X.X</p>
<p dir="ltr">ip flow ingress</p>
<p dir="ltr">ip pim sparse-dense-mode</p>
<p dir="ltr">load-interval 30</p>
<p dir="ltr">no wrr-queue random-detect 2</p>
<p dir="ltr">no wrr-queue random-detect 3</p>
<p dir="ltr">wrr-queue cos-map 1 3 0</p>
<p dir="ltr">wrr-queue cos-map 2 1 1</p>
<p dir="ltr">wrr-queue cos-map 2 2 2</p>
<p dir="ltr">wrr-queue cos-map 2 3 4</p>
<p dir="ltr">wrr-queue cos-map 3 2 3</p>
<p dir="ltr">wrr-queue cos-map 3 3 6 7</p>
<p dir="ltr">mls qos trust dscp</p></font></font></font></font></font></font></div>
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