# Softphone
> A software application that enables voice and video calls over the internet from any device

A softphone is a software-based phone app that makes VoIP calls from computers, smartphones, and tablets.

## What is a softphone?
A softphone is a software application that enables users to make and receive voice and video calls over the internet using [VoIP](/voip-glossary/voip/) technology. Unlike hardware desk phones, softphones run on smartphones, tablets, laptops, and desktops — turning any device into a full-featured phone.

## Key softphone features
Modern softphones support [HD Voice](/voip-glossary/hd-voice/), video calling, messaging, presence, call transfer, conferencing, [SRTP](/voip-glossary/srtp/)/[TLS](/voip-glossary/tls/) encryption, and integration with business tools like CRM platforms.

## White-label softphones for providers
Service providers increasingly offer branded softphone apps to differentiate their service. [Acrobits Cloud Softphone](/cloud-softphone/) is a platform purpose-built for CSPs and ISPs to launch [white-label softphone](/voip-glossary/white-label-softphone/) applications with full customization, [auto-provisioning](/voip-glossary/auto-provisioning/), and push notification infrastructure.

## Related Terms
- [VoIP](/voip-glossary/voip/)
- [White-Label Softphone](/voip-glossary/white-label-softphone/)