voip calls

Is it possible to make voip calls through a mobile? Just wondering, whether it is possible for me to make voip calls that go through my mobile and charge my mobile, then out. Just because I have know signal at home.

Google for “voip iphone app”.
It is possible if your mobile has an internet connection and if there is a voip app available for your mobile phone.

This has nothing to do with Audacity or recording equipment so I’m locking this topic.