SUMOFIBER Voice provides the functionality of your desk phone right on your iOS tablet or smartphone, allowing those on-the-go to make and receive business calls from anywhere while maintaining a single office phone number and voicemail.

* Receive calls to your office phone number
* Receive SMS
* Make calls as your office extension
* Calls made with your mobile show your office caller ID
* Transfer calls to other company or public numbers
* Park callers on the office system, or place them on hold on your device
* On-demand call recording for later reference
* Configure call forwarding and Do Not Disturb
* Visual management of voicemail messages
* Corporate contacts' extensions downloaded on login
* Click to call integration with mobile device
* Make calls over WiFi or 3G / 4G / LTE or Cellular

### SUMOFIBER Voice requires an active SUMOFIBER account ###

*** Voice quality is highly dependent upon your WiFi or 3G / 4G / LTE network bandwidth ***

What’s New

Version 3.1

Fixed an issue where a user receives call notifications after they have logged out. Attempts to answer or end incoming calls resulted in a crash.

Fixed an issue where a user was unable to scroll through a long list of available SMS numbers when starting a new conversation.

Added an improvement where chat push notifications will now include an image preview for chat messages that contain an image.

Plus other fixes and features, please see release notes

App Privacy

The developer, CALLUTAH LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Contact Info

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

  • Siri

    Get things done within this app using just your voice.

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