Zeplin - Collaboration app for UI designers & frontend developers
Tragofone - White-label VoIP Softphone with WebRTC and Auto-provisioning
Figma Product Planner - Easiest way to plan, visualize, & share your product planing
PhonerLite - PhonerLite enables your PC to use it for internet telephony (VoIP , Voice over IP, SIP).
Seeklogo - Seeklogo is a repository where you can search from 400,000 plus vector brand logos and logo templates.
tSIP - tomeko.net/software: SIP client for Windows.