Ringring.io on iOS - 电话和消息App
Ringring.io (http://www.ringring.io) is a Phone and Messaging application built for privacy with open architectures. You can originate calls and send messages in an easy and secured way with no data-collecting man or company in the middle. The technology is freely available for public.
Ringring on iOS is based on Liblinphone, free SI...
[开源APP推荐] Linphone – 开源的Video SIP/VoIP client
Linphone - 开源的Video SIP/VoIP client
Linphone is an open source app offering free audio/video calls and text messaging. With Linphone, you can be reachable at any time, even if the app is closed, with a WiFi or 3G/4G internet connection.
Linphone key features:
* high definition audio and video calls
* audio conference calls with various participants
* pictures and f...