MizuPhone!

Call your friends on VoIP. MizuPhone is a free customizable SIP softphone that lets you call your friends using any VoIP provider. Supported features:-initiate and receive VoIP calls and chat over any connection above 15 kbits (GPRS, EDGE, WiFi, 3G, 4G, 5G)-SIP over UDP and TCP-All the popular VoIP codecs are supported with echo cancellation-PBX features such as DTMF, hold, transfer, conference, caller-id, call-wait, credit and rating display-Integration with server API such as new user registration, callback, SMS and others-Optional branding and customization