everything is private, nothing comes from public area... On the router, the port to open always refer to WAN, not to private LAN... Don't know what to do...!

problem still remains. with SIP ALG and H.323 ALG disable ! Topology ISP => TL-ER6020 => Asterisk server on local LAN => Phones on local LAN Connection problem between phones and asterisk !

hi, on the previous server nothing was configure.... I update the firmware but then I was not able to enable or disable the SIP ALG function. I show on a previous thread that H.323 should be also...

Model : Hardware Version : Not Clear Firmware Version : ISP : Hi, I have TL ER6020. For the moment only 1 WAN is connected. One server asterisk is connected on the LAN and all the phone of the...