This amendment comprises the following changes:

a)          The T.30 Indicator is mandatory.

b)          Annex B is modified to clarify the TCP Start-up.

c)          The ASN.1 text in Annex B is removed. A reference to ITU-T H.245 V7 replaces it.

d)          ITU-T.38 version number is 2, and the table introduced in Amendment 3 is updated.