TY  - GEN
AU  - Johnston,Alan B.
TI  - SIP: understanding the Session Initiation Protocol : understanding the Session Initiation Protocol 
SN  - 1580536557
U1  - 004.62 
PY  - 2004///
CY  - Boston
PB  - Artech House
KW  - Computer network protocols
KW  - Instant messaging
KW  - Computer programs
KW  - Internet telephony
KW  - Multimedia systems
KW  - Session Initiation Protocol (Computer network protocol)
ER  -