Titlebook: ISDN - The Integrated Services Digital Network; Concepts, Methods, S Peter Bocker Book 19881st edition Springer-Verlag Berlin Heidelberg 19

倔強(qiáng)不能

無(wú)目標(biāo)

Subscriber Access,is the digitization of the subscriber line (see Fig. 3.4). The majority of the internationally agreed ISDN specifications (see list of CCITT Recommendations of the I Series in the Annex to this book) on which the following remarks are based therefore deal with subscriber access.

Lobotomy