88/11312.4 CLASS 2.0All Class 2.0 facsimile commands are defined in ITU-T T.32 /9/ and TIA/EIA-592-A /6/.12.4.1 +FAA Adaptive answerCommand Response Defaultset +FAA= 0read +FAA? test +FAA=? (0-1)TIA/EIA-592-A Section 8.5.2.5 /6/.12.4.2 +FBO Data bit orderCommand Response Defaultset +FBO= 0read +FBO? test +FBO=? (0-3)TIA/EIA-592-A Section 8.5.3.4 /6/.12.4.3 +FBS Buffer sizeCommand Response Defaultsetread +FBS? e.g. 1C2,1770testTIA/EIA-592-A Section 8.5.3.2 /6/.12.4.4 +FBU HDLC frame reportingCommand Response Defaultset +FBU= 0read +FBU? test +FBU=? (0-1)TIA/EIA-592-A Section 8.5.1.10 /6/.