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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 in OnSIP

Version 2.11.10:
  • Inbound calls will now show which number the caller dialed, when possible.
  • sayso business hour rules setting has been revamped for more fine grained control.
  • sayso page selection has been redesigned to be more intuitive.
  • If a call to the PSTN does not work, an informative message is now displayed as to why it failed.


Requirements for OnSIP

  • OS X 10.10 or later
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OnSIP User Discussion

Current Version (2.x)
Downloads 723
Version Downloads 18
License Free
Date 23 Mar 2019
Platform Intel 64 / OS X
Price Free
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