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OnSIP brings your business phone to you, whether you’re at the office, at a client’s site, or working remotely. Connect with customers, partners, vendors, and coworkers from your OnSIP account on any computer.

With OnSIP, you can take advantage of standard business phone features without any hardware. Make and receive HD voice and video calls, monitor contact availability, and check recent call history on your desktop in one simple interface. Plus, get access to team collaboration tools like instant messaging and video conferencing.

  • Phone number, extension, and SIP address

What's New

Version 1.5.1:
  • You can now make attended call transfers.
Presence update failures causing duplicate subscriptions were fixed. Some styles on the voicemail page have been improved.. Blind transfer code has been completely revamped, so some edge cases will now work. Receiving real-time updates when you get a voicemail has been fixed. Operations -The app has


  • OS X 10.9 or later

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Current Version (1.x)


Downloads 121
Version Downloads 20
License Free
Date 10 Nov 2017
Platform Intel 64 / OS X
Price Free