Webphone SDK

Region fallback

Configure an ordered list of regions for managed signaling.

Code example

const phone = await IllyVoipWebRtcPhone.create({
  tokenBootstrapUrl: 'https://api.illyvoip.com/api/v1/sip/browser-bootstrap',
  tokenProvider: async ({ region }) => fetch('/my-backend/illyvoip/browser-token', {
    method: 'POST',
    credentials: 'include',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({ region })
  }).then((response) => response.json()),
  regions: ['de', 'us', 'sg'],
  autoConnect: true,
  autoRegister: true
});

phone.on('fallback:applied', ({ region }) => {
  console.log('Browser signaling failed over to', region);
});