I want to connect to external network then IP PBX. From the modem 5060 and 10000, 20000 ports forwarded. But when I try to connect to establish a connection with 3CX software. Asterisk SIP Settings section set up in part of the Dynamic Host but the results still the same.
Sorry about that. From Internal network then I can talk. But I can not link to external network then 3CX program. I wanted to ask exactly that. Happened to have written with Google Translate. Once again, sorry.