Hi, About a week and a half ago there was an update to CentOS 7 kernel which upgraded it from 3.10.0-327.22.2.el7 to 3.10.0-327.28.2.el7; after that upgrade we observed a few times that Freeswitch went hung - it did not respond to SIP requests, but continued to respond to ESL messages; we had to restart it, and it returned a few hours later. After two such days we returned back to the previous kernel version and now we are running without any glitch. Regards, __Yehavi: