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S**N
Five Stars
Very good technical information. Its my summer 2015 reading material.
C**R
Good book on very interesting topic but print quality is low.
This is a nice "interesting" book. I could not find more books dedicated to Carrier Grade VoIP, or Carrier Grade Voice. PSTN replacements are all over and every operator wants to replace legacy technology with IP on VoIP or VoLTE with carrier grade voice. Some chapters go very deep in the protocols. The book is published on par with books that are printed in overseas countries India at reduced rates. I checked and could not find hardbound copy of the book. With regards to English, I would give 2.5 out of 3. Authors do convey the message but the structure of sentences and words are a bit awkward.
T**K
Very Comprehensive, well written.
This book is well written, with a clear and concise breakdown of VOIP. The third edition is a great update on the original work.
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