Free call hack, multiply free trial minutes offered by VoIP providers using voxox number

Recently we published vovox offering free calls to all destinations along with a free US phone number.
Thats great to get a free phone number. Having one extra phone means having lots of free calls by registering to many Voip providers with free test call and if the free test call for each registratio is more than half an hour, then it is worth to register. What do you think?



Here we will