1. Acrobits & Cloud Softphone FAQ
  2. Acrobits Softphone & Groundwire

What is the difference between Acrobits Softphone and Groundwire?

Acrobits Softphone offers basic communication features like voice and video calls, while Groundwire supports advanced business features, including messaging, call transfer, voicemail, and group calls.

Acrobits Softphone and Groundwire are both VoIP clients that use the Session Initiation Protocol (SIP). They are retail softphone applications for business and personal use but are suitable for different user groups.

The following table describes their differences to help you in making the right app choice.

 Feature Acrobits Softphone Groundwire
Intended users
  • Individual users
  • Small business settings
  • Individual users needing advanced phone features
  • Larger enterprise settings
Common capabilities
  • Key phone features - voice calls, video calls, call recording, call holding, Do Not Disturb (DND) setting, and number rewriting
  • Supported audio codecs - g.711 µ-law, g.711 A-law, G.722, Opus, iLBC, G.729A, GSM (RPE-LTP), and Codec 2
  • Supported video codecs - H.264 (MPEG-4 AVC) and VP8
  • Supported security and encryption capabilities - Transport Layer Security (TLS) and Secure Real-time Transport Protocol (SRTP) for media streams [Session Description Protocol Security (SDES), Zimmermann Real-time Transport Protocol (ZRTP), Datagram Transport Layer Security (DTLS)]
  • Supporting incoming calls via push notifications
    (Note: Go to faq.acrobits.net/about-push-notifications to learn about this feature.)
  • Compatible with any VoIP/SIP provider
  • Available for Android and iOS
  • Multiple SIP account subscription
  • Acrobits lifelong customer support
  • One-time payment with a lifetime license
Key differences: Not available Supported
Instant messaging
Attended and unattended transfers Not available Supported
Group calls Not available Supported
Voicemail Not available Supported
Presence operations /Busy lamp field (BLF)  Not available Supported
Customization for each SIP account Limited Extensive


Explore the features of these two applications by watching videos available at the following links:

App Screens Comparison

Here are some images illustrating the differences between these two applications on screen:

 Screen Acrobits Softphone Groundwire
Main screen on an iOS device

Quickdial, History, Keypad, and Contacts tabs

Acrobits Softphone Main screen

Quickdial, History, Keypad, Contacts, and Messages (1) tabs

Groundwire Main screen

Note: The Messages (1) tab does not display by default. To use instant messaging, select Settings > Accounts > a desired SIP account > Advanced settings to enable SIMPLE.

Phone features on the call screen on an Android device

DMTF keypad, call holding, and call recording

Acrobits Softphone call screen

DMTF keypad, call holding, call recording, unattended (3) and attended transfers (4),
and group call (2)Groundwire call screen


If you are looking for an enterprise solution to create your own softphone, go to acrobits.net/cloud-softphone to learn about Acrobits Cloud Softphone.