Place phone calls directly from Thunderbird's address book
Secure video calls, conferencing, chat, desktop sharing, file transfer, support for your favorite OS, and IM network. All this, and more, in Jitsi - the most complete and advanced open source communicator.
Das Add-On bietet einen praktischen Überblick über den Status Ihres Accounts, direkte Benachrichtigungen über neue Ereignisse, Zugriff auf verschiedene Bereiche der sipgate-Webseite und die Möglichkeit, Anrufe per Click2Dial direkt zu tätigen.
SipToSis (Sip to Skype integration software) is Java software that allows you to make and receive Skype calls from your SIP/VOIP telephone adapter, SIP IP phone or Asterisk/SIP PBX.
What do I need to use GizmoCall? Internet connected computer with a browser and Flash version 9 or better.
sippyskype is basically a Skype/SIP Bridge/Gateway/Proxy/Adapter/Converter