Ultra-Sound

超声波是一种基于SIP的软电话为Android手机来拨打VoIP电话

With its simple and intuitive user interface, Ultra-Sound is the solution to making high quality calls for a fraction of the cost. Utilizing the latest advances in VoIP technology, you can be ensured that all your communications are secure and affordable.

• Ultra-Sound is a SIP-based soft phone. You can call your friends and family from Ultra-Sound with lowest international call rates! And very good quality.

Features

• SIP-based Softphone with exceptional voice quality

• Works from Wi-Fi/3G/4G/GSM

• Support for DTMF

• Easy contact book, call history.

In addition to your cost savings, we offers:

• Secure and reliable communication

• Compatible with VOIP switches supporting standard SIP

• Unique anti-block solution

• Option to brand own dialer

• Advance Echo Cancellation

• Flexible integration with your phone book contacts

• Screen display for your call history, call timer and balance