Ring4 can be used in any country and can receive calls and texts from any number worldwide. Ring4 can also call in 40+ countries but Ring4 only allows you to send texts locally i.e. the country of the Ring4 number that you are using.
For international calls, you will have to add the country code of the number in the dialer or in you contact book.
e.g. for US:+1 xxx xxx xxxx, for UK: +44 xxxx xxxx, for Australia +61 xxx xxx xxx
To check the latest coverage list for international call, check the Ring4 description on the App store description
Destination countries supported by Ring4 for calls (updated Nov 27, 2018):
Tables can't be imported directly. Please insert an image of your table which can be found here.Country code Country
Example of the number formatting in the dialer to call a UK number: