TY  - BOOK
AU  - John , C Bellamy
TI  - Digital Telephony
SN  - 9814126357
U1  - 621.385 JOH 
PY  - 2003///
CY  - New York
PB  - John Wiley & Sons
KW  - Electronic Engineering
KW  - Technology
N1  - Includes Index
ER  -