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.

What’s New

Version 4.13

- Fixed display issue when using large system font size.
- Minor layout fixes for iPhone X.
- Various other minor fixes.

App Privacy

The developer, j2 Global, Inc., has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

More By This Developer

You Might Also Like