Siperb Mobile Softphone From £2/mo · Free plan 8.9 Visit 
Groundwire
acrobits.net
Spec sheet
- What it does
- Groundwire is a SIP softphone app for business calling on iOS and Android.Read 8 Oct 2026 · acrobits.net
- Intended users
- Acrobits positions Groundwire for users with heavy daily calling needs, including business teams.Read 8 Oct 2026 · acrobits.net
- Support
- Acrobits provides a support ticket form and lists [email protected] for help.Read 8 Oct 2026 · acrobits.net
- Founded
- 2008Read 28 Sep 2026 · acrobits.net
- Business presence
- Busy Lamp Field shows whether quick-dial contacts are off call, ringing, or on a call.Read 8 Oct 2026 · acrobits.net
- Calling features
- It supports call transfers, conferencing, voicemail, call recording, and call control.Read 8 Oct 2026 · acrobits.net
- Desktop availability
- Acrobits says Groundwire has no native Windows or macOS app and is available only on Android and iOS.Read 8 Oct 2026 · faq.acrobits.net
- Device lock
- Groundwire can require device biometric authentication before users access app functionality.Read 8 Oct 2026 · acrobits.net
- Encryption
- Security settings include TLS, SRTP, SDES, ZRTP, and DTLS.Read 8 Oct 2026 · acrobits.net
- Messaging limit
- Groundwire supports instant messaging, while traditional SMS requires a compatible VoIP provider or a configured web service.Read 8 Oct 2026 · faq.acrobits.net
- Mobile connectivity
- The product page says users can switch between Wi-Fi and mobile data and use their business line while away from the office.Read 8 Oct 2026 · acrobits.net
- Provider compatibility
- Acrobits describes the app as compatible with standard SIP services and over 80 VoIP providers.Read 8 Oct 2026 · acrobits.net
- Setup requirement
- Groundwire requires at least one SIP account from a service provider to function.Read 8 Oct 2026 · acrobits.net
- SIP accounts
- Users can add multiple SIP accounts and configure account-specific settings.Read 8 Oct 2026 · acrobits.net
- Voicemail requirement
- Voicemail features work only when the user's SIP provider offers voicemail service.Read 8 Oct 2026 · faq.acrobits.net
Plans and prices
Groundwire $9.99, paid once One-time purchase; no recurring fee. As of July 2026. Separate purchase for iOS and Android; calling rates charged by SIP provider separately Read 8 Oct 2026 · acrobits.net
Where Specifiction places it
- Softphone Software#16 of 337.7
