TY  - BOOK
AU  - Bellamy,John C.
TI  - Digital telephony
T2  - Wiley series in telecommunications and signal processing
SN  - 9814126357
AV  - TK5103.7 .B44 2003
U1  - 621.385 
PY  - 2003///
CY  - New York
PB  - John Wiley
KW  - Digital telephone systems
N1  - Includes index
ER  -