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Definitive SIP for engineers  |    A 3 day   hands on   training course

SIP training course description

This hands-on course delves into IP telephony using SIP, tailored for engineers with foundational knowledge of IP. Starting with a brief review of essential concepts, the course quickly transitions to an in-depth exploration of SIP. You'll begin with the basics of SIP, covering its core principles, signaling, and call processing architectures. The course then advances to complex topics such as security, multimedia integration, and interoperability. Each major theory session is reinforced with hands-on practicals, ensuring you gain practical experience alongside theoretical understanding.

What will you learn
  • Explain how SIP works.
  • Analyse SIP packets.
  • Deploy SIP IP telephony solutions.
  • Explain and analyse various SIP call flows.
SIP training course details

SIP training course contents

  • VoIP review
  • What is VoIP? Brief review of IP, Brief review of telephones and voice. RTP, payload type, RTP timestamps, RTCP, mixers and translators.
    Hands on Softphone configuration, analysing RTP packets.

  • What is SIP?
  • Why SIP? SIP history, SIP standards, SIP protocol stack, SIP relationship with other protocols, SIP functions, SIP capabilities, initial SIP phone startup, how SIP works, and a basic SIP call.
    Hands on Peer to peer SIP. Video calls.

  • SIP messages
  • SIP sessions, SIP flows, Message structure, Core SIP methods: INVITE, ACK, BYE, CANCEL, OPTIONS, REGISTER. Extension methods. Response codes. SIP call flows. INVITE message format, SDP in the SIP INVITE.
    Hands on Setting up a PBX, analysing SIP packets.

  • SIP and Wireshark
  • Capturing packets, display and capture filters for voice, statistics, telephony menu, SIP statistics, call flows, RTP stream analysis.
    Hands on Analysing VoIP calls.

  • SIP architectures
  • UA client, UA server, Proxy servers, registration, Redirect servers, registrars. SIP phones, gateways, application servers, and other products. Stateful and stateless servers. Various call scenarios.
    Hands on SIP proxies. SIP trunks.

  • SIP addressing
  • URLs, SIP addresses, registration, Location and Directory servers. Address tracking.
    Hands on SIP and DNS.

  • Supplementary services
  • SIP signalling, call hold, call transfer, call forwarding, conferences, call control. SUBSCRIBE, NOTIFY, MESSAGE, PRACK.
    Hands on Analysing SIP supplementary services.

  • SIP security
  • SIPS, SRTP. UAC authentication, VPN, firewalls, NAT problems and SIP. Solving NAT traversal issues, STUN, TURN, ICE Session Border Controllers.
    Hands on SIP authentication.

  • SIP and the PSTN
  • Inter working with PSTN, ISUP to SIP mapping, SIP-T, SIP and SIGTRAN.
    Hands on SIP gateways and trunks.

Learning path

Reviews

5.0

Based on customer ratings

J. S. - Framestore CFC

"Hard concepts were explained very simply."


B. M. - London Internet Exchange

"Excellent presentation - very good course structure."

Training approach

This structured training course seeks to build upon workbook learning through the use of group exercises, dynamic discussion and individual tasks in order to deliver an engaging and interactive module that will ensure all candidates are able to transfer their new skills into the workplace.