TY  - BOOK
T1  - SIP understanding the Session Initiation Protocol
A1  - Johnston, Alan B.
LA  - English
PP  - Boston
PB  - Artech House
YR  - 2004
ED  - 2nd ed.
UL  - https://tuklas.up.edu.ph/Record/UP-99796217603034741
OP  - 283
CN  - TK 5105.55 J65 2004
SN  - 1580536557
KW  - Computer network protocols.
KW  - Instant messaging : Computer programs.
KW  - Internet telephony : Computer programs.
KW  - Multimedia systems : Computer programs.
ER  -