Make voice and video calls, send messages, and more with our military-grade encrypted B2B SIP softphone app. Groundwire is designed for business users looking for more out of their SIP softphone.
Groundwire is preconfigured to support many of the most popular providers. Download Groundwire today to enjoy a more secure B2B experience for all essential business communications. Groundwire delivers high-quality communications, best-in-class security, and a feature-rich, enterprise-like experience for individual users.
Help your business get online and adjusted to remote work with Groundwire without sacrificing on security and accessibility.
What can Groundwire do for you?
- High-quality audio. Experience crystal clear communications. We support Opus, G.722, G.729, G.711, iLBC, and GSM audio formats.
- HD-quality video. Communicate in up to 720p HD. Our app supports both H.264 and VP8.
SMS and rich messaging.
- Let your employees quickly send SMS and rich messages through an intuitive UI.
- Call transfers and conferencing. Keep your essential operations going with built-in call transfers and conferencing.
- Integrated voicemail. Miss an important call? Groundwire comes with a reliable voicemail feature.
- Military-grade encryption. We use a powerful encryption stack that uses SRTP, TLS, and ZRTP (free for incoming calls - paid add-on for outgoing calls) to keep your company's data safe.
- Reduce your battery drain. Leverage the power of push notifications to stay notified and reduce your battery drain.
- Seamless call transition. Make calls using WiFi or your data plan. Groundwire offers seamless transition during the critical handover stage.
- Customize your experience. Groundwire is highly customizable. Customize your SIP settings, the UI, ringtones, and more.
- 5G-friendly. Take advantage of all the benefits 5G has to offer with an SIP softphone that’s built for 5G.
- Multi-device compatibility. Groundwire is compatible with any modern mobile operating system.
- No hidden fees. Don’t worry about hidden fees or subscriptions. Your one time fee provides you with a lifetime license.
- Lifetime support and updates. Each Groundwire license comes complete with lifetime support and unlimited updates.
Worked great for years. Now it starts to ring after they went to voicemail. In other words all calls are delayed for about 5 seconds. Kind of pointless having a phone app that rings after the call is over. This all started after the recent update.
SMS messaging doesn't work with voip.ms
Nothing fancy but it works rock solid for me.
SMS tab missing even though the application notifies me of messages. Contacted support team but it has been a month and no response.
By far the most feature-fledged VoIP softphone on Android and very battery efficient due to the push notification system. However, many aspects of the app are poorly thought out. For example, previously dismissed push notifications reappear when a new one comes in (and their team thinks this uniquely peculiar behaviour is desidable), the SSID filter setting is ignored on incoming calls, SMS conversations have per-conversation notification channels but notifications aren't sent through them, etc.
Enjoying groundwire so far, my early testing it seems more stable than zoiper including better audio quality using it with voip.ms. Couple thoughts. 1) I can designate a shortcut to dial my voicemail, to use it I simply long press the 1 dial key. With zoiper there is a tape recording icon under the 1 on the dial pad, Please add a icon. 2) Improved app integration? Possible to take over from the stock phone app on my phone? (using Google maps to call a number still defaults to the stock app)
I purchased this app and use it with VoIP.ms service. I can't receive calls. The PUSH notification pops up and it then rejects the call right away. Zoiper free version works out of the box. I purchased this app because of the PUSH notification feature. Also switching to standard non PUSH doesn't work for me either. Please help to get my incoming call to work or provide a refund.
Fixed crash on 32-bit Android devices
Fixed issue with showing missed calls in message history
Fixed missing fullscreen incoming calls permission
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