** Attention: In order to function properly, Integra VoIP needs Integra SIP Server. For further information about Integra VoIP and Integra SIP server please follow support link. Integra VoIP is a FREE softphone application for VoIP calls over WiFi and 3G/4G developed by FREUND. Integra VoIP offers a simple user interface from premium quality audio/video calls over IP network. Features: - Audio/Video call - Ability to receive call in local or external network - Push Notifications (ability to