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    The smart approach to business phone service

    OnSIP Intro

    All you need are IP phones and broadband.
    We do the rest.

    • Reliable, HD voice business phone service since 2005
    • Complete replacement for outdated phone systems
    • Total management control at your fingertips
    • Keep your existing phone number
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    The most cost effective business VoIP service out there

    • 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
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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

    No IT guy? No problem! OnSIP is easy to set up.

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    Not all business VoIP providers are alike

    onsip voip services
    • Unlimited users; each user can have up to 10 phones at the same time for no additional cost
    • Users get a free browser dashboard for chat, click to call, voicemail, drag call to transfer, and more
    • We offer true Unified Communications with a free corporate chat interface
    • We support HD calls and conferences
    • We provide unbiased VoIP phone reviews
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    If you want, take a look under the hood

    standards - mmmm...
    • Use your preferred SIP phones or software phones
    • You can use your own domain for SIP domain hosting
    • Up 10 simultaneous SIP registrations per user
    • Every app (voice mailbox, IVR, Directory, Group, etc.) and every user is assigned a SIP address, reachable from any SIP network
    • Supported and easy to teach staff; see our Knowledgebase
    • Use our XMPP based web app My.OnSIP (or any Jabber client) for chat, IM, and status
    • Want to customize? Check out our Developer API

OnSIP Is Mobile


On the go? Transform your cell phone into your desk phone with these apps


OnSIP Phone Reviews

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

  • Each phone goes through strict testing

  • Find out what the experts think


Introducing 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

"Not only has the service been spectacular, but it costs us about a third of what we were paying before."
John Alessi, Quiksoft

Stay In Touch

Latest From Our Blog

When Google does anything, it’s big news. First it was Google Voice, then it was Google Wave, and last week it was the new Gmail upgrade that allows users to call out to the PSTN. Let’s quickly go over some of Google’s existing ‘voice chat’ tools.

Google Chat/Talk is probably more commonly known as the built-in IM client in Gmail. It allows voice and video chats but is limited to PC-to-PC only.

10GUI is something I came across almost a year ago that I was reminded of the other day while speaking to John about touch screen devices. Designed by R. Clayton Miller, 10GUI is a concept design in the next evolution of human interface elements. He says, "the mouse and the windowed desktop are perhaps the two greatest innovations in the history of human-computer interaction. But like all innovations, they are best seen as part of a continuum rather than a terminus."

onsip awards and recognition