To ensure that the phone calling, SMS and WhatsApp functionality of Movement works as intended, please unblock the following for users on your IT network

https://v2.ringround.io on port 443

https://[client-subdomain].v2.ringround.io on port 443

wss://ws.pusherapp.com on port 443

wss://ws-eu.pusher.com on port 443

https://sockjs.pusherapp.com on port 443

https://sockjs-eu.pusher.com on port 443

All IP ranges and ports specified under dublin and frankfurt on this page: https://www.twilio.com/docs/global-infrastructure/firewall-configurations/programmable-voice-sdks

Emails from movement.industries and changelab.io domain names.