New Skills

New Training: Cisco Collaboration: Session Initiation Protocol (SIP)

by Team Nuggets
New Training: Route Patterns, Route Lists and Route Groups picture: A
Published on April 1, 2021

In this 13-video skill, CBT Nuggets trainer Lalo Nunez reviews the Session Initiation Protocol including the different SIP headers and messages. He also will review the Session Description Protocol (SDP) and go over different SIP call flows to illustrate call setup and tear down. Watch this new Cisco training.

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This training includes:

  • 13 videos

  • 1.3 hours of training

You’ll learn these topics in this skill:

  • Intro: Session Initiation Protocol (SIP)

  • Session Initiation Protocol (SIP)

  • SIP Requests

  • SIP Responses

  • SIP Header Fields

  • DTMF-Relay Methods

  • Session Description Protocol (SDP)

  • SIP Early vs. Delayed Offer

  • Collecting traces from CUCM

  • SIP Call Flow

  • SIP Call Flow – Call placed on hold

  • SIP Call Flow – Busy

  • SIP Call Flow – Invalid Number

What is Session Initiation Protocol (SIP)?

Session Initiation Protocol (SIP) is a signaling protocol that you can use in a variety of important multimedia applications popular today, such as voice over IP (VOIP) and instant messaging. It allows for the initiation, maintenance and termination of real-time sessions that transmit voice, video and text messages.

SIP defines both the format of messages exchanged between parties as well as the sequence of communication that occurs between them. You use the protocol in conjunction with a variety of other protocols, such as the Session Description Protocol (SDP), which negotiates the media type and its parameters and sets up the media.

SIP functions independently of transport layer protocols. This means that you use it with the Transmission Control Protocol (TCP), the User Datagram Protocol (UDP) and the Stream Control Transmission Protocol (SCTP). If you require secure transmissions, you can encrypt SIP messages with Transport Layer Security (TLS).

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