70001: Identity: Validation Failed

There was a failure attempting to Dial the specified SIP Endpoint. The User specified is not registered.

The Request body is syntactically correct, the body was successfully parsed, but the data in the body violates the constraints.

For example:

• When performing an update on the "FriendlyName" and setting it longer than allowed 64 characters.
• Updating a field that cannot have a null value to a null.