Feature of OK IP Phone App, Get 10 taka account balance doing NID card verification properly. Talk to any number 24 hours by 30 paisa per minute call rate. (15% VAT applicable) Every second pulse. FREE talk to any IP number. No expiry date for account balance. Allows you to share file and make video call, audio call & group chat. So why delay? Sign up for OK IP Phone App today and enjoy best calling rates of the country.