I'm using the following guide to handle incoming messages: https://www.twilio.com/docs/sms/tutorials/how-to-receive-and-reply-node-js
I added the endpoint for my prod environment to the "A message comes in" webook, which is working when I test in prod, but I want to test incoming messages from my dev environment too. Is there a way to add a second endpoint for this twilio phone number's webhook, or will I need to add another twilio phone number?