Groundwire – VoIP SIP Softphone 6.4.26

Make voice and video calls, send messages, and more with a military-grade encrypted B2B SIP softphone app. Groundwire is designed for business users looking for more from their SIP softphone.

Groundwire is pre-configured to support many of the most popular providers. Download Groundwire today to enjoy a more secure B2B experience for all important business communications. Groundwire delivers high-quality communications, best-in-class security, and an enterprise-like feature-rich experience for individual users.

Help your business get online and adapt to remote work with Groundwire without sacrificing security and accessibility.

What can Groundwire do for you?

• High-quality audio. Experience crystal clear communication. We support Opus, G.722, G.729, G.711, iLBC, and GSM audio formats.
• HD quality video. Communicate up to 720p HD. Our app supports H.264 and VP8. SMS and rich messaging.
• Let your employees quickly send SMS and rich messages through an intuitive UI.
• Transfer and conference calls. Keep your critical operations running with call transfer and built-in conferencing.
• Integrated voicemail. Missed an important call? Groundwire comes with a reliable voicemail feature.
• Military-grade encryption. We employ a strong encryption stack that uses SRTP, TLS, and ZRTP (free for incoming calls – paid add-on for outgoing calls) to keep your company data safe.
• Reduce your battery drain. Leverage the power of push notifications to stay notified and reduce your battery drain.
• Seamless call transitions. Make calls using WiFi or your data plan. Groundwire offers seamless transitions during critical handover stages.
• Customize your experience. Groundwire is highly customizable. Customize SIP settings, UI, ringtones and more.
• 5G friendly. Take advantage of all the benefits 5G has to offer with a SIP softphone built for 5G.
• Multi-device compatibility. Groundwire is compatible with any modern mobile operating system.
• No hidden costs. Don’t worry about hidden fees or subscriptions. Your one-time fee gets you a lifetime license.
• Lifetime support and updates. Every Groundwire license comes with lifetime support and unlimited updates.