Error 15004
Product: Programmable Voice
ERROR - 15004
Action Callback URL must be an absolute URL when using TwiML to update in-progress calls
Use absolute URLs when updating in-progress calls with TwiML The TwiML provided for updating the in-progress call must use absolute URL for action callback.
Possible Causes
A relative URL is provided for action callbacks when updating in-progress call with TwiML.
Possible Solutions
Provide an absolute URL for the action attribute when updating in-progress call with TwiML.