TalkTT is a VoIP app for making phone calls and sending text messages to any phone number worldwide. It allows you to buy phone numbers from over 80 countries and receive calls or text messages from those countries.

You can also use your device as a virtual phone to make calls to your friends or family members who don't have the app.

TalkTT allows you to make calls to the regular contacts in your phone, just like you would normally do, and even check your call history.