Linphone is an open-source voice over IP service and SIP client. It allows you to make voice and video calls, send instant...
Best Groundwire Alternatives ranked by AI · updated Aug 2026
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Groundwire is a mobile SIP softphone for iOS and Android that supports VoIP calling through compatible SIP providers. It is built for professionals who need reliable mobile calling, push notifications, contact integration, and multiple accounts.
Top 6 Groundwire alternatives
3CX is a software-based private branch exchange (PBX) system for unified communications that works with popular IP phones, SIP trunks, and Gateways....
Starting at $0 for the standard edition
Zoiper is a VoIP softphone that supports various platforms and offers features like video calling, messaging, and call recording.
Free version available, paid options starting from $39.95
MicroSIP is a lightweight open-source VoIP softphone for Windows. It allows for easy voice and video calls over the Internet.
5
PhonerLite
Heiko Sommer
PhonerLite is a free Windows softphone for making and receiving calls through SIP accounts. It is aimed at home users and small...
Pros
- Free for Windows users without account or subscription fees
- Lower resource usage than most full-featured softphones
- Supports multiple SIP profiles and common VoIP codecs
Cons
- Windows-only, unlike Linphone and Zoiper
- Older-looking interface than most modern alternatives
- Fewer collaboration and messaging features than Bria or 3CX
Acrobits Softphone is a highly customizable SIP client for iOS and Android devices, offering features like push notifications, call recording, and integration...
Starting from $6.99
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