TY  - BOOK
AU  - Johnston,Alan B.
TI  - SIP: understanding the Session Initiation Protocol 
SN  - 1580536557 (alk. paper)
PY  - 2004///
CY  - Boston
PB  - Artech House
KW  - Computer network protocols
KW  - Instant messaging
KW  - Computer programs
KW  - Internet telephony
KW  - Multimedia systems
N1  - Includes bibliographical references and index
ER  -