TY  - BOOK
AU  - Bellamy, John C
TI  - Digital Telephony
SN  - 9788126509294
U1  - 621.385 
PY  - 2008///
CY  - New Delhi
PB  - Wiley India Pvt. Ltd.
KW  - Digital Telephony
KW  - Electronics & Communication
ER  -