This free Mobile VoIP Softphone runs not only on both ARM and X86 architectures but also in a wide range of mobile handsets. Optima Free Dialer uses SIP signaling protocol and is compatible with all the major SIP supported softswitches.
Optima Dialer ensures enhanced performance and delivers the best possible voice quality even on low internet speed. It overcomes the major limitations of the other VoIP dialer products in the market. Implementation of latest technologies and a lot of useful features make it a must-to-have Mobile VoIP Dialer product for the VoIP calling operators in the today's market.