Good app but 3 stars

I dont get how other reviewers are using magicjack on this application. I even speak magicjack topest tec suport guy but he has no idea about this
Any tips abot setting up magicjack on this isip are welcome

Im using isip with georgian voip provider. Quality is fine but have problem income calls (push notification doesnt works) while program is not open, otherwise its good... Please fix this problem and this gonna be best sip/voip appl ever, with 5 star rating

Alexa78 about iSip -VOIP Sip Phone, v4.7.1