Hi. I tested with sipp my system. With asterisk sipp gets more than 500 calls, with kamailio 68 at maximum with same settings. What I did: run sipp though kamailio and look for active channels at asterisk. It give me result with 68 calls at maximum (with limit 500 calls and with generating with 100 calls per second with length of call - 30seconds) Next I run sipp withasterisk directly and it give at 500 calls result with same settings at sipp 2014-09-29 11:23 GMT+04:00 Daniel-Constantin Mierla &lt;miconda(a)gmail.com <mailto:miconda@gmail.com>>: Hello, how do you check the active calls number? Cheers, Daniel On 26/09/14 03:42, Yuriy Gorlichenko wrote: Hello. I try to test with SIPp my stak of kamailio->asterisk. I run SIPp with 200 calls/sec and see only 68 at maximum active calls at server. When I set 500 calls/sec with limit 1000 I see 68 active connections again. So when I try test SIPp to asterisk without Kam i see wright maximum of active channels/calls. My question - does Kamailio have limits ffor calls? If no- help me to understand please what is going on with my server. Thanks. -- Daniel-Constantin Mierla http://twitter.com/#!/miconda <http://twitter.com/#%21/miconda> - http://www.linkedin.com/in/__miconda <http://www.linkedin.com/in/miconda> _________________________________________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users(a)lists.sip-router.org <mailto:sr-users@lists.sip-router.org> http://lists.sip-router.org/__cgi-bin/mailman/listinfo/sr-__users <http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users> _______________________________________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users(a)lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users