With Telz app you can make cheap and excellent quality calls to any telephone number across the globe! The advantages of Telz: Cheap phone calls from anywhere via Edge/3G/4G or WiFi. Callback mode for a slow Internet connection. Our server connects to your phone and then the phone of the person you are calling. This is done via a telephone network, not Internet.
A free .apk installation package of International Calls 7.2.4 is available from Droid Informer and you can check out users' reviews on this site. Prepare 17 MB of free space on your device for this app installer and keep in mind that it requires Android 5.0 and higher. The app has been scanned for viruses and it has been found totally secure. This application is created by Telz International Calls and its category is Communication.
Comes highly recommended. No issues with connectivity or call quality