Hi, Folks, I using dyndns to access my box remotely. My sip_general_custom.conf has this lines: bindport=5060 bindaddr=0.0.0.0 nat=yes externhost=xxxxx.ath.cx localnet=192.168.0.0/255.255.255.0 externrefresh=10 allowguest=yes context=from-trunk rtptimeout=60 rtpholdtimeout=120 useragent=Elastix I just checked my network and it's really 192.168.0.* but No one in call can hear each other. I tried to make this changes in sip_nat.conf but as I expected the result was the same. I configured the router to redirect all traffic brings in port 5060 to PBX's IP at 5060. Are there a debug that shows me what could happening? Help me please I must to fix it for a boring customer!