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Action Callback URL must be an absolute URL when using TwiML to update in-progress calls



ERROR: 15004

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PROGRAMMABLE VOICE
ERROR

The TwiML provided for updating the in-progress call must use absolute URL for action callback.

Possible Causes

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A relative URL is provided for action callbacks when updating in-progress call with TwiML.

Provide an absolute URL for the action attribute when updating in-progress call with TwiML.


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