What are some alternatives?
Reservio - Reservio is a simple online booking and appointment scheduling application.
Pidgin - Pidgin is an easy to use and free chat client used by millions. Connect to AIM, MSN, Yahoo, and more chat networks all at once.
BookSteam - BookSteam Online booking and appointment scheduling software for businesses worldwide. Easy to use, cloud based web scheduler that includes class and group bookings. Calendar management and schedule organization, trusted by thousands.
Skype - Stay in touch with your family and friends for free on Skype. Download Skype today to chat and call on desktop and mobile.
SimplePractice - With SimplePractice, manage your notes, scheduling, and billing all in one place. Conduct secure video appointments with Telehealth by SimplePractice.
Jitsi - Open-source video calling and chat platform.