價格：免費
檔案大小：18.7 MB
版本需求：系統需求：iOS 8.0 或以後版本。相容裝置：iPhone、iPad、iPod touch。
支援語言：英語
Key features include:
1. Lowest battery usage with highest reliability / stability on App Store.
2. Lowest latency of all IOS softphones.
3. Exceptional voice quality.
4. Bandwidth normalization.
5. Voice/Video packet negotiation
6. Bluetooth support.
7. Excellent audio quality, even on older devices.
8. Supports calling over WIFI/EDGE/3G/LTE.
9.Background / multitasking support.
10. Integration with the native ios contact list.
11. Speakerphone mute and hold.