Is there any config variable somewhere which is limiting the max call limit on FS to 1000? Set-up: Taking FS for max call load on my machine. User freeswitch is calling internal gateway and playing demo-ivr User freeswitch defined in vars.xml <X-PRE-PROCESS cmd="set" data="default_provider=10.60.20.145"/> <X-PRE-PROCESS cmd="set" data="default_provider_username=freeswitch"/> <X-PRE-PROCESS cmd="set" data="default_provider_password=freeswitch"/> <X-PRE-PROCESS cmd="set" data="default_provider_from_domain=10.60.20.145"/> <!-- true or false --> <X-PRE-PROCESS cmd="set" data="default_provider_register=false"/> <X-PRE-PROCESS cmd="set" data="default_provider_contact=5000"/> Internal Gateway defined in directory/default/freeswitch.xml <include> <user id="freeswitch"> <params> <param name="password" value="freeswitch"/> <param name="vm-password" value="5000"/> </params> <variables> <variable name="toll_allow" value="domestic,international,local"/> <variable name="accountcode" value="5000"/> <variable name="user_context" value="default"/> <variable name="effective_caller_id_name" value="Extension 5000"/> <variable name="effective_caller_id_number" value="5000"/> <variable name="outbound_caller_id_name" value="$${outbound_caller_name}"/> <variable name="outbound_caller_id_number" value="$${outbound_caller_id}"/> <variable name="callgroup" value="techsupport"/> </variables> </user> After 1000 calls, it is giving the same error -ERR DESTINATION_OUT_OF_ORDER Yes, my CPU (quad-core AMD) and RAM (2GB only) are under heavy stress by the time 1000 calls are being done, but is it not a little strange that every time the resources get exhausted at precisely 1000 calls! regards, Anita