HoduCC - HoduCC is a FreeSWITCH based product which offers contact center softwares for call centers.
Freshservice - Freshservice: the one-stop cloud solution for all your IT management needs.
Ameyo - Ameyo is a powerful and highly flexible IP-based contact center software that lets you have a personalized interaction with every customer across multiple channels, thereby driving customer engagement to a level par excellence.
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
ConnectAndSell - Delivering live conversations with inbound leads, on demand.
Zendesk - Zendesk is a beautiful, lightweight help-desk solution.