Hi,
We are a team of telecommunication developers having 8+ year experience with open source CTI tools, like Asterisk, Kamailio, Freeswitch etc.. further we have sound expertise in Networking, VoIP, Web GUI development, Web Services, Linux Administration, Virtualization, Horizontal scaling (Cloud), Load balancing and Fail-Over technologies.
In a reference to our competency we can proudly mention that we are the developers of following popular applications.
1. ICTBroadcast (commercial license)
2. ICTFAX (open source)
3. ICTDialer (open source)
4. ICT IVR Designer (ICTDialer)
5. ICTInvoice (open source)
Regarding your project, the technology behind "meet jitsi" is called as WebRTC, and we have very sound experience with it, can do this job as per your satisfaction.
Waiting for your positive response.
Regards