TY  - BOOK
AU  - Gomillion,David
AU  - Dempster,Barrie
TI  - Building telephony systems with asterisk: an easy introduction to using and configuring asterisk to build feature-rich telephony systems for small and medium businesses 
SN  - 9781904811152
AV  - TK5105.8865 .G65 2005
PY  - 2005///
CY  - Birmingham
PB  - Packt Publishing
KW  - Internet telephony
KW  - Computer network protocols
ER  -