GreatCall Jitterbug Manual page 51

If you expect to make calls beyond the U.S. or Canada, consider our
convenient International Calling option. Add the International Calling
option to your account and you'll be ready to call internationally in
no time! To dial internationally, you may need to access the + symbol
before entering in the country code and phone number. To access the +
symbol, please hold down the button until the + symbol appears on
the Internal Display.
Getting Started 41