Telbee.io - telbee adds voice messaging to podcasts, websites, social media and email to easily hear from and build human relationships with your customers and community - save time, reduce frustration, and gain sales, understanding and fans
UserVoice - UserVoice integrates easy-to-use feedback, helpdesk, and knowledge base management tools in one platform that empowers users to speak and companies to understand.
Vocaroo - Vocaroo is a quick and easy way to share voice messages over the interwebs.
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
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.