Welcome to™ - the innovative and free SIP-based soft-phone, designed for those who want to own full control of their business communications experience.

• Friendly drag-and-drop based interface
• Hold up to 4 calls
• Conference calling with up to 4 participants
• Attended Call Transfer
• Blind Call Transfer
• Notes
• Call history with a list of received, missed and dialed calls
• Multiple SIP accounts
• Remote provisioning and control
• OPUS codec support
• Native push notifications to receive calls

IMPORTANT NOTE:™ is a standalone soft-phone and not a VoIP service. A SIP server or subscription with a SIP-based VoIP provider is required to make or receive calls.

Some network operators may prohibit or restrict the use of VoIP functionality over their network and may also impose additional fees, or other charges in connection with VoIP. You agree to learn and abide by your carrier's network restrictions. DIDWW will not be held liable for any charges, fees or liability imposed by your carrier for use of VoIP over Mobile/Cellular Data.

What’s New

Version 1.19

Improvements: App stability
Improvements: Maximum recent call count up to 2000
Minor bug fixes

Ratings and Reviews

3.4 out of 5
13 Ratings

13 Ratings

BradStudio ,

Has serious potential, needs work.

Basic user would have a difficult time setting this up. Luckily I figured it out fairly easily but noticed the call push ringing future when you have multiple devices configured does not work properly. I have three devices configured where only the desktop would ring when I called the number. I hope they install call kit into this app so it performs like the regular calling app.

Also please for the love of humanity, give user is the option to change ringtones.

Definitely has a lot of promise in the sip app space.

Developer Response ,

Dear Brad,

Thank you for your feedback. We would like to inform you that your concerns with application have been resolved with new updates. You may give it a try once more and share your feedback!

dufyd ,

LOTS of progress

Though initially I rated this app poorly, they constantly update it and release more features and bug fixes. Overall now that I’ve been using it more frequently i have forgotten the bad times and rarely have issues with it. I’m sure wanted feature will be added soon enough.

nima kamtech ,


Perfect sip phone

App Privacy

The developer, DIDWW, 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:

  • Identifiers
  • Usage Data
  • Diagnostics

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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