Which SIP response message should the TGW send if it cannot process the tunneled QSIG messages from seenagape 11 years ago Refer to the exhibit. Which SIP response message should the TGW send if it cannot process the tunneled QSIGmessages from the OGW? A.405 Method Not Allowed B.406 Not Acceptable C.412 Conditional Request Failed D.415 Unsupported Media Type E.485 Ambiguous ← Previous question Next question →