Building telephony systems with asterisk :
Gomillion, David
Building telephony systems with asterisk : an easy introduction to using and configuring asterisk to build feature-rich telephony systems for small and medium businesses / David Gomillion and Barrie Dempster - Birmingham : Packt Publishing, c2005. - 161p. : 24 cm.
9781904811152
Internet telephony
Computer network protocols
TK5105.8865 / .G65 2005
Building telephony systems with asterisk : an easy introduction to using and configuring asterisk to build feature-rich telephony systems for small and medium businesses / David Gomillion and Barrie Dempster - Birmingham : Packt Publishing, c2005. - 161p. : 24 cm.
9781904811152
Internet telephony
Computer network protocols
TK5105.8865 / .G65 2005