Dayunet

Dayunet Android is an open source VoIP Voice over IP phone (VoIP) / Android SIP client software.
It is designed for Dayucloud cloud platform to develop video software. Users simply enter the account number and password to register successfully.
However, it may also be used with any compatible SIP system provider.

Main features:
Support for audio / video calls;
Secure communications and encryption software;
Modern codec supports (WP8, H264, MPEG4) for better audio / video quality;
Join Dayucloud cloud platform service allows you to: video / monitor / network switchboard triple cloud services
You can become a member of the office of corporate actions (registration required our platform services)
Direct extension dialing between concept completely free; such as 453 and 589 can directly select each other for voice calls or video conferencing (requires registration of our platform services)
Successfully registered with SIP IPCAM to 884 extensions, the same can be done without fixed IP extension sync monitor, you can also voice intercom (requires registration of our platform services)
Support enterprise IVR voice self-recorded (need to register our platform services)
Multi-party voice conferencing capabilities (using our value-added service platform)
Telephone recording function (with our value-added service platform)
Let your address book; short code dialing (need to use our platform services)
Multi-party video conference room (need to use our platform services)
Simple text dialogue function (need to use our platform services)