Freshdesk - Freshdesk is a cloud-based customer support software that lets you support customers through traditional channels like phone and email, social channels like Facebook and Twitter, and your own branded community
FreshStatus - Better status pages in 1-click, FREE FOREVER
LiveAgent - LiveAgent is a fully-featured web-based live chat and help desk software. It harnesses the power of a universal inbox, real-time live chat, built-in call center, and a robust customer service portal. Start your free 1 month trial today!
statuspage - A simple self-hosted status page site with an API written in Django under the BSD license.
Zendesk - Zendesk is a beautiful, lightweight help-desk solution.
Avaya one-X Agent - Other Customer Service