What are some alternatives?
When comparing Cloud Telephony and Zent.io, you can also consider the following products
RingCentral - RingCentral is the leading provider of cloud-based communications and collaboration solutions for small business and enterprise companies
ZenDesk - Zendesk is a beautiful, lightweight help-desk solution.
Asterisk - An open source telephony switching and private branch exchange service for Linux.
LiveAgent - LiveAgent is a fully-featured web-based live chat and helpdesk software. It harnesses the power of a universal inbox, real-time live chat, built-in call center, and a robust customer service portal. Start you free 14-day trial today.
MyOperator - MyOperator is a cloud-based call management system for voice communication purposes.
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