TY  - BOOK
AU  - Harte,Lawrence
AU  - Flood,Robert
TI  - Introduction to public switched telephone networks (PSTNs) : POTS, ISDN, DLC, DSL, and PON technologies, systems and services
SN  - 0974278769
PY  - 2005///
CY  - Fuquay-Varina, NC
PB  - Althos
KW  - Telecommunication systems
N1  - Includes indexs and references
ER  -