1> that is strange… but they have the right to use it, there’s no problem. the question is : is there any MS that is actually using the MPDCH to establish TBF ?
i’m VERY interested in this topic, if you could let me know the details about the Irish operator, that’d be great.
2> the DTM doesn’t require MPDCH. the DTM signalling is performed on dedicated channels only (FACCH or PACCH), because DTM works only when the user is already in dedicated mode. It doesn’t induce any load on the BCCH.