Hi In version 3 of H.248.1 the new Annex F was introduced which clarifies ServiceChange procedures. Is this annex is expected to affect versions 1 and 2 of H.248, i.e. for example it is going to become part of implementors guide for those versions? If the answer is no then what is the expected behavior of the version 1 and 2 H.248 entities relevant to the procedures described in Annex F. Thanks, Sasha