Internet Communications Using SIP: Delivering VoIP and Multimedia Services with Session Initiation ProtocoleBookInternet Communications Using SIP: Delivering VoIP and Multimedia Services with Session Initiation ProtocolkaryaHenry SinnreichPenilaian: 3 dari 5 bintang3/5Simpan Internet Communications Using SIP: Delivering VoIP and Multimedia Services with Session Initiation Protocol untuk nanti