Groundwire: VoIP SIP Softphone

3.4
674 reviews
50K+
Downloads
Content rating
Everyone
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About this app

Acrobits Groundwire: Elevate Your Communication

Acrobits, a leader in UCaaS and communication solutions for over 20 years, proudly introduces the Acrobits Groundwire Softphone. This top-tier SIP softphone client offers unmatched voice and video call clarity. A softphone designed for both personal and professional use, it seamlessly integrates quality communication with an intuitive interface.

IMPORTANT, PLEASE READ

Groundwire is a SIP Client, not a VoIP service. You must have service with a VoIP provider or PBX that supports use on a standard SIP client to use it.

📱: Choosing the Best Softphone App

Experience robust communication with a leading SIP softphone application. Preconfigured for major VoIP providers, this softphone app guarantees high-quality, secure, and intuitive calling. Perfect for maintaining connections with friends, family, and colleagues, maximizing all aspects of your VoIP experience.

🌐: Key Features of the SIP Softphone

Exceptional Audio Quality: Enjoy crystal clear audio with support for multiple formats including Opus and G.729.

HD Video Calls: Conduct up to 720p HD video calls, supported by H.264 and VP8.

Robust Security: Our SIP softphone app ensures private conversations with military-grade encryption.

Battery Efficiency: Thanks to our efficient push notifications, you can stay connected with minimal battery drain.

Seamless Call Transition: Our VoIP dialer smoothly switches between WiFi and data plans during calls.

Softphone Customization: Tailor your SIP settings, UI, and ringtones.
5G and Multi-Device Support: Ready for the future, compatible with most mobile operating systems.

Other features included on this robust app include: instant messaging, attended and unattended transfers, group calls, voicemail, and extensive customization for each SIP account.

🪄: More Than Just a VoIP Softphone Dialer

Groundwire Softphone offers more than the standard VoIP dialer experience. it’s a comprehensive tool for crystal clear Wi-Fi calling, equipped with robust business VoIP dialer features. It offers a secure and reliable softphone choice with no hidden fees and a one-time cost. Leverage SIP technology for improved call quality. Make this Softphone your first choice for dependable, and easy SIP communication.

Download a feature rich and modern SIP Softphone now and be part of a community enjoying the best in voice and SIP calling. Transform your daily communication with our exceptional VoIP softphone app.
Updated on
Mar 16, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Photos and videos, Audio and 4 others
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

3.5
655 reviews
David Davis
November 22, 2024
App seems full featured and the functionality is fine. I have occasional lockups with the app, especially when the battery is nearly drained. Feature and function-wise, the app gets 4 or 5 stars. The flip side is the battery use. If allowed to run in the background, the phone will burn through the battery. Further work on reducing the battery usage would be extremely helpful. That said, if you can get by with setting the app to not run in the background, you should be fine.
27 people found this review helpful
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Acrobits, s.r.o.
November 28, 2024
David, thank you for your feedback and suggestions! I’ll make sure to share them with our team as we continue to work on improvements
Matthew Austin
March 16, 2026
Broken in the latest version and was running previously. Can't answer the calls and it continues ringing even after answered on another device. Have to force close the app to stop the ringing as it doesn't respond to Answer or Decline.
1 person found this review helpful
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Marius Callmori
March 17, 2026
with the last update, I see no stability at all. when someone calls, it just keeps ringing and can't do nothing but to shut down the phone. you better fix that problem so maybe I can change my review
Did you find this helpful?
Acrobits, s.r.o.
March 17, 2026
Hi Marius, thank you for bringing this to our attention. We apologize for the inconvenience caused by the recent update. Please contact our support team at https://acrobits.net/support/ so we can gather more details and assist you in resolving this promptly. We look forward to helping you.

What’s new

- Improved stability