A SIP user agent implemented in React/Redux/Material-ui, using sip.js.
Try it online at https://ringmeg.uninett.no.
Build app.
cd app/
Web app has own detailed README for development.
npm install
npm run build
Copy build folder content to ../server/public/
Now build server.
cd ../server
npm install
Generate certificate in certs folder
openssl req -x509 -newkey rsa:4096 -keyout localhost.key.pem -out localhost.cert.pem -days 365
(or check other options at https://letsencrypt.org/docs/certificates-for-localhost/ or https://stackoverflow.com/questions/9519707/can-nodejs-generate-ssl-certificates )
Configure: copy config.example.js into config.js,
adjust file name for certificate and key.
Run server. (You may need add sudo on Ubuntu 18.04, that has by default lower ports as privileged )
sudo node server