7.1  General  p. 44

7.2  Message too short  p. 44

7.3  Unknown or unforeseen message type  p. 44

7.4  Missing mandatory information element  p. 45

7.5  Information elements unknown or unforeseen in the message  p. 45

7.6  Out of sequence information elements  p. 45

7.7  Repeated information elements  p. 45

7.8  Syntactically incorrect mandatory information element.  p. 45

7.9  Syntactically incorrect optional information elements  p. 45

7.10  Conditional information element errors  p. 45

7.11  Information elements with semantically incorrect contents  p. 46