REDCARD is next-gen mobile application built for offering hassle free VoIP calling experience to end users. The mobile application has robust features making it more responsive and user-friendly. It is available on iPhone. The in-built noise and echo cancellation technology allows end users to experience a crystal clear voice quality. REDCARD is compatible with all SIP standard soft switches.
Key Features:* NAT traversal on Private IP
* Address book integration
* Real-time SIP status message
* Low bandwidth consumption
* SIP softswitch compatibility
* Codecs: G729, PCMU, PCMADownload the best mobile VoIP application for unbelievable VoIP calling experience.