Joins the public base URL, the extension's mount path and a route into the absolute URL a carrier should call back (e.g. https://api.example.com + /telephony/twilio + /status).
https://api.example.com
/telephony/twilio
/status
Joins the public base URL, the extension's mount path and a route into the absolute URL a carrier should call back (e.g.
https://api.example.com+/telephony/twilio+/status).