Zoiper

Zoiper is a service-independent softphone app, SDK, and white label.

Zoiper softphone apps serve tens of millions of users and hundreds of thousands of businesses worldwide. The Zoipera apps are available in free and pro versions on the desktop – Windows, OSX, Linux and mobile platforms – iOS, Android, Windows Phone. The Zoiper team delivers custom development solutions specifically packed for ITSPs, operators, PBX, VoIP and VoLTE providers, call centers, and integrators.