> How is this better than just getting a VoIP line .. Many countries block this, and even make it illegal for international calls. Both for security and financ

> How is this better than just getting a VoIP line .. Many countries block this, and even make it illegal for international calls. Both for security and financial reasons. Telecom companies around the world have an understanding with other on interconnection charges. Security reason should be obvious - it is easier to track people and collect metadata on foreign calls if everything happens through your network. E.g. Many countries even block voice calls through Signal, Skype, WhatsApp etc.