OnSIP vs RingCentral


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OnSIP
Virtual PBX Service For Any Business, provides virtual office connectivity, user friendly Web 2.0 management, free extension to extension calls, free internet to internet calls
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RingCentral
Complete cloud-based phone system for your business. Power your business with comprehensive outbound voice and fax. Your complete all-inclusive phone system. Easy to manage. Instant setup. Unlike most alternatives it provides HD video meetings. Optimize your business communications with enterprise-class voice, fax, text, mobile apps, call handling and BYOD capability. Your phone system seamlessly, integrates with Salesforce, Box, Dropbox, and Google Drive.