TY  - GEN
AU  - Donohue, Denise
AU  - Salhoff, Ken
AU  - Mallory, David
TI  - Ciscovoice gateways and gatekeepers
SN  - 9788131718100
U1  - 004.695 
PY  - 2007///
CY  - New Delhi
PB  - Pearson Education
KW  - ANALOG CIRCUITS
KW  - SIP GATEWAY
KW  - IP WAN
KW  - MEDIA GATEWAYS
KW  - VOICE GATEWAYS
KW  - IP GATEWAYS
ER  -