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You need to look at the CTI traces to see why CTI is spiking the cpu. In most cases I've seen it is because some application has gone crazy and is just sending a ton of requests to CTI. Look at the CTI SDL traces and look for "processIncomingMessage" to see all incoming messages from applications. If you see a certain message repeated over and over again that's a big clue.<div><br><div> <p style="margin: 0.0px 0.0px 0.0px 0.0px"><font face="Helvetica" size="3" style="font: 12.0px Helvetica">-Ryan</font></p> </div><br><div><div>On Jul 23, 2008, at 11:23 AM, David Lima wrote:</div><br class="Apple-interchange-newline"><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Hi Guys, I have a CCM 3.3(4)sr2 (just for 2-3 months, then CCM 4.1(3)) with almost 20 CTI configured. In some times, I lose the dial tone and when I check the CPU usage, it is 100%.</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">If I restart CTIManager services, the CPU usage seems normal (20-40%) and I don't have any problem.</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Does any one can give me a tip or there is some vulnerability related to this CCM varsion or CTI.</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Thanks a lot</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">David</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; min-height: 14px; "><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">_______________________________________________</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">cisco-voip mailing list</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><a href="mailto:cisco-voip@puck.nether.net">cisco-voip@puck.nether.net</a></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><a href="https://puck.nether.net/mailman/listinfo/cisco-voip">https://puck.nether.net/mailman/listinfo/cisco-voip</a></div> </div><br></div></body></html>