App: Blink Pro
Developer: AG Projects
Genres: Business, Social Networking

Blink is an easy to use multimedia SIP client.

 * OSX Integration (iCloud, iTunes, Address Book, Keychain, Voice Over)
 * Clear audio using Opus codec optimised for full spectrum audio 
 * Telephony compatible codecs: AMR, G.711, G.722 
 * Video calls using H.264, VP8 and VP9 codecs
 * Acoustic echo cancelation
 * Presence (SIP SIMPLE RLS and XCAP protocols)
 * Chat and File Transfers sessions (MSRP protocol) 
 * Instant Messaging (SIP Message)
 * Screen Sharing (VNC protocol)
 * Multiparty conferencing (audio, chat and file transfers)
 * End-to-end chat encryption (OTR protocol)
 * End-to-end audio encryption (ZRTP protocol) 
 * Corporate directory services (LDAP protocol)
 * OpenPGP support for SIP messaging
 * Compatible with telephony applications (dialpad, call hold,  call transfer)
 * Fine-grained settings for SIP experts

Blink does not collect any data. Contacts accessed by Blink from system address-book are not uploaded to any servers.

Release notes:
Messaging fixes