Click-to-call is a Web-based communication in which a person clicks button, image or text to request an call with another person. These services are very popular to use with Email signatures, blogs & webpages. Today we will discuss about Divafone service clicktocalls.com which offers click-to-call button/link, international calling SIP and SMS. Clicktocalls is giving 0.50 Euro credit without any credit card information to try the service.