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Title: Bad! or best?? textbook to understand or teach Bluetooth
Review: In Hands-free profile explanation, there are some drawings from Fig. 20-8 to Fig. 20-12. In these drawings, the pictures of Hands-free device and Audio Gateway are all opposite.In real Hands-free profile, an Audio Gate-way is a cellular phone and a Hands-free device is a ECU which has audio I/F.In these, the pictures of the cellular phone are all right side left, mirror image. I think this might be a kind of mistake on making books, but it is a bad joke or an evidence of carelessness of the authors that they could not find these in their proofreading phase.If there were same kind of mistakes in the other parts, a reader would need to read all related specifications and check them. It might make a reader to be a real expert of Bluetooth, but who want to buy and read this book with referencing the all specification in the same time?
