What are some alternatives?
FireRTC - FireRTC is the easiest way to call from your computer for free
Jira - The #1 software development tool used by agile teams. Jira Software is built for every member of your software team to plan, track, and release great software.
Cage - A simple way for designers and teams to share, manage and approve their creative work.
Pivotal Tracker - Pivotal Tracker: The awesome, lightweight, agile project management tool for software teams. Get your 30-day Free Trial started today!
BobRTC - BobRTC is a VOIP platform dedicated to thwarting telephone fraud, illegal robocallers and scams.
Wrike - Wrike is a flexible, scalable, and easy-to-use collaborative work management software that helps high-performance teams organize and accomplish their work. Try it now.