> One more thing: I am well aware that Skype was also used to make calls to landlines and mobile phones across borders, but this is a feature that is hard to replicate, and somewhat of an add-on. If you need that kind of feature, you will have to rely on other apps on phone or websites that propose such services. Consider this out of scope for the present discussion.

Not sure about other people, but this was the only feature that I used Skype for (i.e. cheap calls to home country landlines while residing abroad).

Does anyone have a trustworthy recommendation that's similar to what Skype offered?