You can download SIP2SIP 2.4.0 for Mac from our application library for free. The software belongs to Communication Tools. This free Mac app was originally created by AG Projects. The following version: 2.4 is the most frequently downloaded one by the program users. The current installation package available for download requires 37.3 MB of hard disk space. This Mac download was scanned by our antivirus and was rated as safe.
From the developer:
SIP2SIP is a real time communications service for audio, video, presence, chat, file transfer and multiparty conferencing based on SIP signaling and related media protocols (RTP, MSRP and XCAP). The service is open and federates with external SIP and XMPP domains.
You may want to check out more software for Mac, such as Blink or Blink Pro, which might be similar to SIP2SIP.
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