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A Powerfully Simple Cloud Phone System

& Gartner Cool Vendor
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A Gartner Cool Vendor in UC

OnSIP was named by leading analyst firm Gartner in their report, "Cool Vendors in Unified Communications, 2015." All thanks to our powerful CPaaS.

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No Monthly Fees Per Phone or Extension

Save with OnSIP. Pay only for the cloud phone system apps and external calling you use, and internal calling is free. No contracts.

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Award-Winning Video CRM Solutions

Impress your customers with a seamless communications experience, like instant video chat on your website.

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Standards-Based for Your Phone Freedom

Don't get locked down by your business VoIP provider. OnSIP is compatible with any SIP standard phones and offers a free web phone. 

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Proud to Call Customers

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From The Business Voice Blog