Digital telephony
Bellamy, John C.
Digital telephony / John G Bellamy - 3rd ed. - New York : Wiley, ©2000. - xxv, 643 p : ill ; 24cm
9814126357
HCL
Digital telephone systems.
Digital
Bellamy, John C.
Electrical Engineering
621.385 BEL
Digital telephony / John G Bellamy - 3rd ed. - New York : Wiley, ©2000. - xxv, 643 p : ill ; 24cm
9814126357
HCL
Digital telephone systems.
Digital
Bellamy, John C.
Electrical Engineering
621.385 BEL