https://snapcraft.io/install/siperb/kubuntu
Install SIPERB - Desktop Softphone on Kubuntu using the Snap Store | Snapcraft
Get the latest version of SIPERB - Desktop Softphone for on Kubuntu - Siperb is a modern SIP/VOIP Softphone (powered by WebRTC).
desktop softphonethe snapinstall
https://www.siperb.com/
SIPERB - WebRTC powered Softphone for Browsers, Mobile and Desktop
Siperb is a modern Softphone powered with WebRTC and a free hosted SIP Proxy that connects to your VoIP PBX like Asterisk, FreeSWITCH or any SIP based PBX.
for browserswebrtcpoweredsoftphonemobile
https://www.counterpath.com/white-label/
White Label Softphone for Mobile & Desktop | CounterPath
White Label your VoIP Softphone with custom branding Deploy a custom branded softphone - fully featured with calling, conferencing, provisioning and more....
white label softphonefor mobiledesktop