The one I use the most is a Fluke Net Tool. It can determine polarity problems and I believe has some diagnostics for POE and VOIP. It also can go "in-line" between a device and the network and help diagnose problems the device is experiencing that the tool would not encounter on its own.
<br><br><div><span class="gmail_quote">On 3/21/07, <b class="gmail_sendername">Louis-David Mitterrand</b> <<a href="mailto:vindex+lists-asterisk-users@apartia.org">vindex+lists-asterisk-users@apartia.org</a>> wrote:
</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">On Wed, Mar 21, 2007 at 05:53:27AM -0500, Bruce Reeves wrote:<br>> Yes, I recently saw this with a 501, in my case the network drop was
<br>> the problem. If you have a good tester then run it on the connection.<br>> I had another drop near by and just swicthed to it.<br><br>What kind of test tool would you suggest? Usually we rely on the cabling<br>
guys for that but that entails a delay and I'd be interested in knowing<br>how to do it myself.<br><br>Thanks,<br>_______________________________________________<br>--Bandwidth and Colocation provided by <a href="http://Easynews.com">
Easynews.com</a> --<br><br>asterisk-users mailing list<br>To UNSUBSCRIBE or update options visit:<br> <a href="http://lists.digium.com/mailman/listinfo/asterisk-users">http://lists.digium.com/mailman/listinfo/asterisk-users
</a><br></blockquote></div><br><br clear="all"><br>-- <br>Bruce Reeves<br>Nortex Networks