Onebox® – business phone app

Onebox® – business phone app

By j2 Global, Inc.

  • Category: Business
  • Release Date: 2009-12-02
  • Current Version: 4.13
  • Adult Rating: 4+
  • File Size: 21.05 MB
  • Developer: j2 Global, Inc.
  • Compatibility: Requires iOS 9.0 or later.
Score: 2
From 312 Ratings


Use your Onebox® account while on the go with the Onebox app: • Manage call forwarding settings so you don't miss important calls • Read or listen to voicemail transcriptions/messages • Send and receive text messages from your Onebox business phone number • Choose which Caller ID number is shown when you make or receive calls • View, send, and receive your faxes right from the app • Add frequently called numbers to your speed dial list The Onebox service turns your iPhone into a complete business phone system. Don't have your Onebox account yet? Sign up today at Onebox is a state-of-the-art office phone system that’s perfect for small businesses, with all the capabilities you could ask for. Your calls are answered with a professionally recorded custom greeting and can be directed to any employee, in any location around the world. It includes an auto-attendant with easy-to-use menu options for call routing, voicemail, faxing, and conferencing. Onebox is committed to improving our services and we welcome your feedback. Please send feedback, suggestions, or bug reports to Note: No emergency calling (911) available using the Onebox Application. Valid Onebox account is required to use the mobile app, some features are additional.



  • Disappointing Update May 2017

    By Flyerscute
    The Onebox app FINALLY had an update, this week, after two years and even included notification features through your IPhone, (i.e. badge, banners, lock screen), which, is something it never had before (not to be confused with the "forward notifications" option that Onebox already has, which, isn't as organized and practical as these new notification features are). However, after downloading the update, the notifications failed to work. After trying everything possible, to test if they are working, I phoned Onebox customer service. After a half hour phone call, I was able to decipher, from what they told me, that this is not Apple's fault, rather, the Onebox system itself has not caught up with the app yet. There are still a couple of features I'd love the app to have, with notifications being at the top of my list. I hope they add these features soon, as this app has great potential to completely satisfy everything you'd need in a phone system.
  • It's a six

    By Peterhendershot
    It works but could be so much better. Unless the app is open there is no way to know when new messages (text messages mainly) have arrived. Improve this and it would be a game changer.
  • Online emails

    By Knick fan
    Going online to the website and trying to write an email is extremely difficult. You cannot copy you cannot paste with emails it won't let you, I feel like I'm trying to send an email from 10 years ago.
  • Awful

    By LittleJimmyB
    Stink on ice. Horrible interface. Cheap, ineffective and cumbersome. Wish I could dump the app...and Onebox for that matter. Just sayin'.
  • Developers could care less

    By Longball0712
    App has always had little issues. Finally starting working pretty well until the ios10 update. Developers still after almost 6 months haven't updated the app to work with ios10.
  • Easy to use

    By Jmartin116
    Very good and easy to use!
  • Still Has Bugs that Need Fixing

    By TanyaJohn
    This app still freezes, crashes, and occasionally drops calls.
  • Office must have!

    By MissieBird
    The one box app has been a godsend it to all of us in the office! Being able to fax from our phone being able to listen to and call back clients easily is priceless.
  • Worse service and app

    By jbrazier
    One box is the worse service and has the worse app. There is no where to hang up.
  • Having to uninstall

    By Saslpr
    If you have this on an iPad you do not get calls forwarded to your phone. If you try to disable VoIP on e app in the IPad states that this is not an IPhone can not disable. Have support request in, however have talked to escalated support not helpful. Great Idea but does not work unless you are exclusively using IPad