thanhnn.ict

Dear Bro, the root reason of call drop after 32 second due to ACK Timeout. i setup my system behind NAT, so i had to config on freeswitch module: vars.xml <X-PRE-PROCESS cmd="set" data="external_rtp_ip=IP NAT SERVER"/> <X-PRE-PROCESS cmd="set" data="external_sip_ip=IP NAT SERVER"/> good luck!