Yes, an internet connection is required to use Localphone.com for its calling services. Localphone operates over Voice over Internet Protocol, or VoIP technology, which means that your calls are transmitted through the internet rather than traditional telephone lines. Therefore, a stable and reliable internet connection is essential for making and receiving calls with Localphone. Users can utilize either a Wi-Fi connection or mobile data to access Localphone's services through its apps or web interface. It is recommended to ensure a good bandwidth for the best call quality. If you are curious about specific internet requirements or any other details, those can generally be found on the Localphone website.