With Linux Mint 19.1, kernel 4.15, I connect to the Internet using WiFi, and want to share the Ethernet connection with a Grandstream IP Phone.
I have done:
click | network connection | wired connection 1 | edit | ipv4 setting | automatic dhcp | change to | shared to other computer | click | save
With kernel 4.4, the connection is OK, but, since changing to kernel 4.8, the phone can make calls, but I don't hear the person on the other side. I don't receive calls, either.
I would to know if there is some port to open or something to do with the iptables.
Phone Model: Grandstream GXP1625.