Good introduction to digital telephony hierarchy and ISDN
Published by Thriftbooks.com User , 25 years ago
While a bit dated in it's coverage of ISDN deployment in the US, this book covers the bit level formatting of T carrier and E carrier frames in exhaustive detail. Required reading for newcomers to the telco provisioning process, and very useful for ISPs seeking a solid understanding of how telco provisioning and carrier channelization works. An excellent desktop and teaching reference work.
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