TY  - GEN
AU  - Bellamy,John
TI  - Digital telephony
SN  - 0471620564
U1  - 621.385,BEL 
PY  - 1991///
CY  - New York
PB  - Wiley
KW  - Digital telephone systems
N1  - Background  and  Terminology (Page-1), Why Digital (Page-75), Voice Digitization (Page-93), Digital Transmission and Multiplexing (Page-165), Digital Switching (Page-225), Digital Modulation and Radio Systems (Page-279), Network Synchronization Control and Management (Page-333),Fiber Optic Transmission Systems (Page-381), Data and Integrated Services Digital Networks (Page-431), Traffic Analysis (Page-459)
UR  - http://www.loc.gov/catdir/enhancements/fy0607/90037906-d.html
UR  - http://www.loc.gov/catdir/enhancements/fy0607/90037906-t.html
ER  -