I have set fields under Nat Settings, Add local network fields. Under the form, it says, “Blank fields will be ignored”. But it does not allow a save of a blank field. After Submit, I am returned to the entry form at local networks. Reboot and restart of the Raspberry Pi does not help. Use of a different browser does not help, as the empty fields still appear.
This is a new install not yet in use, though it works fine on extensions and IAX. But I have to solve SIP no audio problems. Set up = Raspberry Pi 3, Current Asterisk Version: 13.18.3
Your suggestion is solicited.