Hi, I am getting "503 Maximum Calls In Progress". I did some sofia.conf.xml configuration but still the same. Could some please point me to right direction what I am missing. tnx! UP 0 years, 5 days, 1 hour, 2 minutes, 55 seconds, 545 milliseconds, 798 microseconds FreeSWITCH (Version 1.2.16 git 3bbb60f 2013-12-15 03:45:56Z 64bit) is ready 266825 session(s) since startup 111 session(s) - peak 177, last 5min 117 0 session(s) per Sec out of max 60, peak 18, last 5min 6 1000 session(s) max min idle cpu 25.00/84.00 Current Stack Size/Max 240K/8192K <!-- Minimum idle CPU before refusing calls --> <param name="min-idle-cpu" value="25"/> <!-- Max number of sessions to allow at any given time. NOTICE: If you're driving 28 T1's in a single box you should set this to 644*2 or 1288 this will ensure you're able to use the entire DS3 without a problem. Otherwise you'll be 144 channels short of always filling that DS3 up which can translate into waste. --> <param name="max-sessions" value="1000"/> <!--Most channels to create per second --> <param name="sessions-per-second" value="60"/> <!-- Default Global Log Level - value is one of debug,info,notice,warning,err,crit,alert -->