Hi, My SIP service provider terminates calls in meetme in my Asterisk PBX and am getting delay on those channels. I found following link to measure delay in meetme and to decrease it eventually. http://lists.digium.com/pipermail/asterisk-dev/2005-August/014958.html It says, enable USE_RTC for dahdi_dummy. I have been using virtual server for hosting Asterisk and I had it disabled as per one had mentioned here to prevent the crashing which was happening earlier..(http://www.odindev.com/content/troubles-zaptel-centos-52-xen). Can you shed some light on the issue? --SM