What are some alternatives?
RingCentral - RingCentral is the leading provider of cloud-based communications and collaboration solutions for small business and enterprise companies
Convoso - Convoso's Cloud Contact Center helps SMBs increase sales, marketing and customer service success.
3CX - Hosted PBX with CRM integration and mobile apps
Nextiva - Business VoIP, cloud phone systems trusted by more than 150,000 companies. Powered by the leading cloud PBX VoIP platform, Nextiva is rated the best business VoIP service provider.
Vonage Business - Business phone system.
PhoneBurner - PhoneBurner is a cloud-based power dialer to boost sales productivity