TY - BOOK AU - Sinnreich,Henry AU - Johnston,Alan B. TI - Internet Communications Using SIP : Delivering VoIP and Miltimedia Service With Session Initiation Protocal SN - 0471413992 / AV - TK5105.55 S617 I5 2001 PY - 2001/// CY - New York PB - John Wiley & Sons KW - Computer network protocols KW - Internet telephony KW - Multimedia systems ER -