TY  - BOOK
AU  - Valdar,A.R.
ED  - Institution of Engineering and Technology.
TI  - Understanding telecommunications networks
T2  - IET telecommunications series
SN  - 0863413625
U1  - 621.382 22
PY  - 2006///
CY  - London
PB  - Institution of Engineering and Technology
KW  - Telecommunication systems
N1  - 1; An introduction to telephony --; 2; The many networks and how they link --; 3; Network components --; 4; Transmission systems --; 5; Transmission networks --; 6; Circuit-switching systems and networks --; 7; Signalling and control --; 8; Data (packet) switching and routeing --; 9; Mobile switching systems and networks --; 10; Numbering and addressing --; 11; Putting it all together --; App. 1; Standards organisations --; App. 2; List of ITU-T recommendation E.164 assigned country codes
ER  -