Bynder - Bynder is a cloud-based digital asset management solution for marketing professionals looking to simplify how they manage digital content via one central portal.
Tragofone - White-label VoIP Softphone with WebRTC and Auto-provisioning
Brand.ai - Create a style guide & integrate with Sketch, Slack, & Gulp
PhonerLite - PhonerLite enables your PC to use it for internet telephony (VoIP , Voice over IP, SIP).
Frontify Style Guide - Create beautiful web-based brand manuals in minutes
tSIP - tomeko.net/software: SIP client for Windows.