TY  - GEN
AU  - Bigelow, Stephen J
TI  - Understanding telephone electronics
SN  - 0672270188 (Hbk)
U1  - 621.385 
PY  - 2001///
CY  -  Boston: 
PB  -  Newnes
KW  - Telephone
N1  - Includes index
ER  -