00243nam a22000857a 4500 220318s1993 us ||||| |||| 00| 0 eng d 62.002 A guide to new technologies and services / Livingston, NJ : Bellcore, 1993. 0 4 udc 0 62002 0 457127 CPL CPL GEN 2022-03-18 0 62.002 2022-32328 2022-03-18 00:00:00 FF2E50277 2022-03-18 BK 574467 574465