RingCentral - RingCentral is the leading provider of cloud-based communications and collaboration solutions for small business and enterprise companies
Evercontact - Your contacts always up to date and automatically with Evercontact.
Aircall - Aircall is a call center software of a new generation designed for fast growing companies. Setup instantly and integrates to your CRMs
CONTACTBOX - CONTACTBOX combines the simplicity of an address book with effective functions of a CRM system.
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.
Bigin by Zoho CRM - Pipeline-centric CRM built and priced for small businesses