TY  - BOOK
AU  - Goncalves,Flavio E.
TI  - Building telephony systems with OpenSER
SN  - 1847193730
AV  - TK5105.55  .G66 2008
PY  - 2008///
CY  - Birmingham
PB  - Packt Publishing
KW  - Internet telephony
KW  - Computer network protocols
ER  -