3cxv14 what is new with public IP

[proby]

In 3cx v14 what is new with enter public IP address? May I later enter dyndns domain for learning use and instaling 3cx at my home?

 

[proby]

Can the 3cx v14 bound over dyndns so that I can link the home phone 3cx and Android phone.At home logical I have DSL ?