TY  - BOOK
AU  - Hersent,Olivier
AU  - Gurle,David
AU  - Petit,Jean-Pierre
TI  - IP telephony: packet-based multimedia communications systems 
SN  - 0-201-61910-5
AV  - TK5105.886 H47 2000
PY  - 2000///
CY  - Harlow, Ing.
PB  - Pearson Education
N1  - Incluye bibliografia
ER  -