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    The smart approach to business phone service

    All you need are IP phones and
    broadband.

    • Reliable, HD voice business phone service since 2005
    • Complete phone system replacement
    • Keep your existing phone number

    Or, give us a call: 1.800.801.3381

    What Is OnSIP?
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    The most cost effective business VoIP service

    • OnSIP

      $18.50
    • Aptela
      $43.00
    • 8x8
      $48.00
    • Vocalocity
      $49.00

    Prices per seat per month, with the following feature set:
    15 users lobby phones conferencing groups queues phone numbers usage

    How OnSIP saves you money

    • No cost per user, seat, extension, or phone
    • Pay only for features and minutes you use
    • Lobby, conference, and home phones are free
    • No activation fee, contracts, or "extra" charges
    • Unlimited use of HD conferencing

    Or, give us a call: 1.800.801.3381

    Save Big
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    Recognized and trusted by the people you trust

    onsip virtual teams
    • "One of the most popular and comprehensive services in this space is called OnSIP... Unlike some competing products, OnSIP can be configured to work with any SIP-capable device..." - Ars Technica

      Read more >>

    • "...As one would hope from a company catering to business, I found the quality and reliability of OnSIP connections to be excellent." - GigaOm

      Read more >>

    Or, give us a call: 1.800.801.3381

    Recognition
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    Meet us at the Channel Partners Expo in Vegas

    We're giving out free expo tickets to resellers interested in OnSIP

    • Join over 3,200 participants to network and learn about new revenue generation.
    • Stop by our booth to learn about our award-winning reseller program
    • For an exclusive appointment with our CEO and free expo ticket, click here.

    Or, give us a call: 1.800.801.3381

    Channel Partners Expo
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    If your team is virtual, why isn't your phone system?

    onsip virtual teams

    Remote phones work the same anywhere

    • Extension dialing, outbound calling, call transfers, 3-way calling, voicemail-to-email.
    • Use your OnSIP phone system on your iPhone. It's easy!
    • Have an Android phone? Answer your work extension anywhere with an app.

    Or, give us a call: 1.800.801.3381

    Virtual Teams


OnSIP Phone Reviews

  • Unbiased look at Polycom, Aastra, Cisco, and more

  • Each phone goes through strict testing

  • Find out what the experts think


Free Unified Communications: my.OnSIP

in browser xmpp/jabber client
  • See phone and online status
  • Drag and drop calls
  • Chat

OnSIP offers a browser interface for our phone service called my.OnSIP. In this interface, users can drag and drop calls, listen to and delete voicemails, view the chat/phone status of coworkers, and chat with coworkers.

Customers Love OnSIP

"Overall, for small businesses with multiple needs and locations, you can’t really beat it."
- Ted Lannon, Northshore Paralegal Services

Latest From Our Blog

“Now in HD!” Voice Codecs and what they really mean

Jan 24 2012 | Posted by nicole at 03:26 PM EST

This blog is by Eric Tamme, member of the OnSIP Engineering Team

What is a codec?

Codec is short for “coder-decoder”. A codec is a program, or an implementation of a algorithm, which converts an analog input signal, like your voice, to a digital signal by sampling it according to the algorithm. The codec can also take a sampled stream from a matching codec, and decode the samples back to a similar analog stream that was input originally.

Here is an example codec called PCM:

Read the full post 205 reads  

OnSIP reviews the Konftel 300IP Conference Phone

Jan 24 2012 | Posted by leo at 11:45 AM EST

A customer recently asked us if we could recommend to him something other than a Polycom for his conference room. I realized then that we hadn't really looked into conferencing solutions from other manufacturers, and the team immediately sought out to remedy that.

Read the full post 131 reads  

Read more posts »

onsip awards and recognition