
Blink
FreemiumBlink is the best real-time communications client using the SIP protocol.
Discover best Sip Linux softwares, apps and websites.
Blink is the best real-time communications client using the SIP protocol.
Zoiper is an easy to use sip video softphone, with excellent voice quality and easy to setup.
Ekiga (GnomeMeeting) is a VoIP and video conferencing application for GNOME and Microsoft Windows.
Linphone is a free voice over IP (VoIP) service and SIP client.
Empathy is an instant messaging (IM) and voice over IP (VoIP) client which supports text, voice, video, file transfers, and inter-application communication over various IM protocols.
Asterisk is a open source communications project that lets you create telephony apps for IP PBXs, VoIP Gateways, etc.
Jitsi (formerly SIP Communicator) is a free and open source multiplatform voice (VoIP), videoconferencing and instant messaging application.