Groundwire: VoIP SIP Softphone

2.8
610 reviews
50K+
Downloads
Content rating
PEGI 3
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image

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
Jul 23, 2025

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

2.8
594 reviews
Kostas Analytis
July 10, 2025
I moved from a wonderful app (but horrible company) called 3CX which until I found this app, I considered it to be one of the best sip clients out there. I've been recommending the app to customers for about a year now, both for iPhones and Android devices. I also use it to register my extensions on my new freeswitch vPBX. Very fast app, superb push notifications, great call quality (of course depends on codecs) and very very VERY importantly, it's very kind on my battery. Worth every penny!
1 person found this review helpful
Did you find this helpful?
Acrobits, s.r.o.
July 14, 2025
Thanks so much for the great review and for recommending us.
Chris Katsaounis
May 15, 2025
excellent app stability, user experience, features for both novice as well as pro users. very simple setup for all major SIP voip service providers. Compared to other sip clients that I have used so far, it is by far the best. Highly recommended!
4 people found this review helpful
Did you find this helpful?
Acrobits, s.r.o.
June 4, 2025
Chris, thank you so much for the amazing review! 🙌 Your recommendation means a lot to us.
Arunas Ruksnaitis
June 2, 2025
worked very well for a while, but now the push notifications server stopped responding to OPTIONS keepalive from my Asterisk and the app no longer works in the background, only in battery-hungry 'standard' mode. Can't find Acrobits support contact...
1 person found this review helpful
Did you find this helpful?
Acrobits, s.r.o.
June 4, 2025
Arunas, thanks for the review! Sorry to hear you're having issues with push notifications. Feel free to reach out to us at [email protected]. Our team will help you sort this out.

What’s new

- Adapted backup/restore for non-logout flows