A softphone is a software program for making telephone calls over the Internet using a general purpose computer, tablet or smartphone, rather than using dedicated hardware. Often designed to behave like a traditional telephone with a display panel and buttons for user interaction.

Learn More: Back to Basics, What is a Softphone and How to Leverage It?

Company: VoIP.ms
Platform: Android and iOS
SMS Support: Yes
TLS Support: Yes
Overview: Official VoIP.ms mobile application with push notifications and SMS support.

Company: Acrobits
Platform: iOS, Android
Overview: Mobile SIP client for iOS and Android devices.

Company: CounterPath
Platform: Windows, macOS, iOS, Android
Overview: Desktop and mobile softphone application with call control features.

Company: CounterPath
Platform: Windows, macOS, iOS, Android
Overview: Team communication softphone with unified messaging across multiple devices.

Company: Linphone
Platform: Windows, Linux, macOS, iPhone, Android
Overview: Open-source SIP softphone supporting voice, video, and instant messaging.

Company: MicroSIP
Platform: Windows, Linux, macOS
Overview: Lightweight SIP client for Windows, Linux, and macOS.

Company: Vedisoft
Platform: Windows, macOS
Overview: Professional solution for call center agents, sales teams, and support staff with CRM integration.

Company: Zoiper
Platform: Windows, macOS, Android, iOS, Linux
Overview: Multi-platform SIP and IAX softphone with support for multiple languages.

• AntiSIP - Android-only SIP client with limited recent updates
• Blink - Desktop softphone for macOS and Linux with basic features
• Dialer+ - iOS-only softphone with limited modern features
• Ekiga - Windows/Linux softphone with dated interface
• Express Talk - Softphone with dated interface and limited updates
• FgVoIP - BlackBerry-only client (BlackBerry platform discontinued)
• Fring - Multi-platform client with reduced VoIP focus
• Jitsi - Desktop softphone with focus shifted to web conferencing
• Kiax - IAX2-only client for Asterisk systems
• NetDial - Mobile SIP client with limited features
• MizuPhone / MizuDroid - Windows and Android clients
• NinjaLite - Windows-only softphone with dated interface
• PhonerLite - Windows-only basic SIP client
• PortGo - Windows desktop and mobile client
• QuteCom - Multi-platform client with limited development
• SessionTalk - Mobile SIP client for Android/iOS
• SIP Droid - Android-only open source client
• SIPnetic - Android-only VoIP client
• SJPhone - Windows/Windows Mobile client (Windows Mobile discontinued)
• Taki - BlackBerry-only client (BlackBerry platform discontinued)
• Telephone - macOS-only minimalist SIP client
• tSIP - Windows-only lightweight client
• X-Lite - Multi-platform client with limited free features
• Zoiper Communicator - Desktop client superseded by Zoiper 5

For new deployments, we recommend choosing from the popular softphones listed above.