This app was mentioned in 39 comments, with an average of 1.21 upvotes
I don't personally have any experience with any apps like that since I haven't needed one. But I found this in the Play Store. Maybe it will help you out. https://play.google.com/store/apps/details?id=com.viber.voip
Hmmmm, question:
Are you basing this on the icons presented in one of the packages? The one that looks like a phone but is actually Viber?
What about viber? Available in windows phone, android, iOS and PC.
Personally I don't use it that much as I find the stickers quite annoying. Still, it's a decent enough option and you could give it a try...
FYI: If you don't have a phone or are out of minutes or don't want to spend the money to make a long distance phone call (is this still a thing?) you can try using PopTox https://www.poptox.com It's a free service that lets you make phone calls from inside your browser. It works on a laptop, but I haven't tried it on a mobile browser.
Here is a app to make free calls via wifi on Android/IPhone. It's called Viber and has a good reputation the last time I checked: https://play.google.com/store/apps/details?id=com.viber.voip https://itunes.apple.com/us/app/viber/id382617920?mt=8 http://www.viber.com/en/