Optima Free Dialer

Optima Free Dialer is a Mobile VoIP App from Improlabs Pte Ltd. Mobile VoIP refers to the technology which helps the users to make VoIP calls from their mobile communication devices like Smart Phones and Tabs. Optima Dialer is an state-of-art Mobile VoIP App by Improlabs and enables smart mobile devices to make VoIP calls with ease.