SIP2SIP 2.1.1 is free to download from our software library. The SIP2SIP installer is commonly called sip2sip.exe. The latest version of SIP2SIP can be installed on PCs running Windows XP/Vista/7/8/10/11, 32-bit. The software is categorized as Communication Tools.
The file size of the latest installation package available for download is 37.3 MB. This free program was originally produced by AG Projects. Our antivirus check shows that this download is virus free. The most popular versions of the SIP2SIP are 2.1, 2.0 and 1.3.
From the developer:
SIP2SIP is a real time communications service for audio, video, presence, chat, file transfer and multiparty conferencing based on WebRTC, SIP, XMPP and related protocols. The service is free to use based on a fair-use policy and federates with publicly reachable SIP and XMPP domains.
You may want to check out more software, such as Active Worlds, Cordless DUALphone Suite or Collanos Phone, which might be related to SIP2SIP.
Texting & Video calls