The purpose of outbound webhooks for the Burner Developer Connection is to allow more tech-savvy burner users build automation based on content they receive on their burner phone number. The outbound webhook allows forwarding text messages and pictures the Burner number receives - even voicemails left on the phone number to the web url user configures in Developer connection.
For some additional context check out our writeup of the feature here.
Burner will post a json message to the url configured in the Developer Connection settings with a POST http method.
Url can be https or http, both are supported by our system.