價格：免費
更新日期：2019-05-09
檔案大小：57.6 MB
目前版本：1.10.001
版本需求：需要 iOS 8.0 或以上版本。與 iPhone 相容。
支援語言：英語
Crystal is developed based on the requirements of VoIP Providers business needs. Compatible with all sip standard switches.
It has very efficient implementation of jitter buffer to play voice smoothly.
Silent suppression and comfort noise generation has been used to reduce the bandwidth usage, and this makes the dialer more efficient in making VoIP calls.
支援平台：iPhone