i have Grand Stream 6204 installed behind Sonicwall TZ300 i want make the Rules to use Gs-wave in my Cell phone , can any one Help me please
you have to do the NAT of the SIP and RTP ports,
create the appropriate ACL if you do not want to find the server sip hosted by all
thanks So much i have did the same i open Port 5060 and RTP 10000-20000 and Do NAT as well with ACL but still not even Registreded
Get rid of the ACL for the moment and follow this, but use the UCM port listing instead of the 3CX listings. Once working, then you can add the ACL back in.