Why talk about SIP?
FREE PREVIEWWhy Talk about SIP?
SIP Compared to Alternatives -- TDM, VoIP, REST
SIP Compared Alternatives
SIP Requests and Responses, UAC and UAS
SIP Requests and Responses, UAC and UAS
Wireshark - Viewing SIP Messaging in Summary view
Wireshark - Viewing SIP Messaging in Summary view
SIP Requests Introduction: REGISTER, INVITE, BYE, SUBSCRIBE and NOTIFY
SIP Requests Introduction: REGISTER, INVITE, BYE, SUBSCRIBE and NOTIFY
SIP Status Codes: Provisional Responses 100, 180, 183
SIP Status Codes: Provisional Responses 100, 180, 183
SIP Status Codes: Final Responses 200, 300, 302, 401, 503
SIP Status Codes: Final Responses 200, 300, 302, 401, 503
SIP Ladder Diagram Call Examples; Typical SIP messaging during UCaaS (Hosted PBX) Device Bootup
SIP Ladder Diagram Call Examples; Typical SIP messaging during UCaaS (Hosted PBX) Device Bootup
SIP Phone Registration with Authentication: REGISTER via Session Border Controller, with NAT
SIP Phone Registration with Authentication: REGISTER via Session Border Controller, with NAT
Calling 1/6: Initial INVITE
FREE PREVIEWCalling 1/6: Initial INVITE
Calling 2/6: SIP with Session Description Protocol (SDP); One-way media flows; SBC in media
Calling 2/6: SIP with Session Description Protocol (SDP); One-way media flows; SBC in media
Calling 3/6: INVITE with 401 Unauthorized; INVITE with Authentication; CSeq
Calling 3/6: INVITE with 401 Unauthorized; INVITE with Authentication; CSeq
Calling 4/6: 100 Trying; INVITE to Redirect Server
Calling 4/6: 100 Trying; INVITE to Redirect Server
Calling 5/6: 302 Redirect; PRACK
Calling 5/6: 302 Redirect; PRACK
Calling 6/6: 183, PRACK, Final setup of call; BYE to end the call
Calling 6/6: 183, PRACK, Final setup of call; BYE to end the call
