Hosted VoIP Done Right


With OnSIP's unique hosted VoIP solution, you will never have to worry or even think about your business phone system ever again.



OnSIP replaces your business phone system with a future-proof voice over IP solution that is hosted entirely in the cloud. You get all of the functionality you would expect from an on-premise enterprise PBX, along with productivity-enhancing features, extras, and add-ons made possible with our cloud platform, all at a price that can save you up to 80% on your current phone bill.



With OnSIP hosted VoIP, you get...

  • A full-featured enterprise PBX including:
    • Voicemail boxes
    • Auto attendants
    • On Net Conference Suites
    • Call groups
    • ACD queues
    • Dial-by-name directories
    • Music on hold
    • Call parking
    • Busy lamp field
    • and much more...
  • Free US based customer support. Never worry about managing your business phone system again.
  • Industry-leading reliability. Our platform is designed so that no single point of failure will affect your service.
  • Easy setup. All you need are phones and a reliable Internet connection.
  • Full mobile support. Make and receive calls seamlessly from smartphones, tablets, laptops, and PCs.
  • Flexible pricing that makes sense. OnSIP customers have reported up to 80% savings.
Learn more with a free quote & consultation
Read what some of our 20,000 plus business customers have to say

"Happy with OnSIP ... Great support too."
- Jason Fried, 37signals


"Ars [Technica] currently uses a service called OnSIP, which offers such features as voicemail, extensions, call forwarding, and automated menus... We also have the flexibility of using OnSIP with both standard Polycom IP phones, which offer exceptional call quality, and with third-party software clients as well."
- Matthew Braga, Ars Technica


"[With OnSIP,] you can provision a phone line from the cloud in five minutes, you can connect any number of high quality sip phones to that cloud-based phone number. And you can use that phone and phone number from any internet connection you want."
- Fred Wilson, Union Square Ventures




Try out OnSIP Business VoIP.

Risk-free 30 day trial

Let us help you find the right phone service for your business.

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