Practical SIP Telephony Training Course

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Course Language

This course is delivered in German or English.

Course Code


Duration Duration

21 hours (usually 3 days including breaks)

Requirements Requirements

It is assumed that delegates will have a working knowledge of TCP/IP. A basic understanding of VoIP would be beneficial.

Overview Overview

A 3 day practical course covering the messages and call flows of the Session Initiation Protocol (SIP) and its use in voice networks. This course is a mixture of theory and practice (utilising protocol analyser traces where appropriate for explanation and troubleshooting) with practical VoIP configured using IP telephones, softphones, voice capable Cisco routers and SIP IP PBX,s (e.g. Trixbox).


Network Planners, Designers, and Engineers requiring an understanding of SIP.

The course is around 40% practical.

Course Outline Course Outline


  • Describe call signalling and setup in the voice network
  • Describe carrying of voice media and bandwidth requirements for VoIP calls
  • Describe SIP standards, services, messages and return codes
  • Describe basic call setup using SIP
  • Describe SIP flows and SDP
  • Describe registration process and making calls with a SIP Server
  • Describe IP PBX and Call Conferences
  • Describe SRV records and DNS
  • Describe uri/url/urn, ENUM and NAPTR Records
  • Describe mapping of services to an address
  • Describe SIP-T and SIP-I
  • Describe SIP early media and SIP trunks
  • Describe call flows between PSTN and IP using SIP
  • Describe Secure SIP, Secure RTP and Secure RTCP
  • Describe typical Secure SIP implementations

Practical Exercises:

  • Lab Exercise 1: Practical SIP in the LAN with Xlite
  • Lab Exercise 2: Examine SIP Packets using Wireshark
  • Lab Exercise 3: SDP, Presence and IM
  • Lab Exercise 4: Call Flows with SIP Server
  • Lab Exercise 5a: SIP Registration with DNS
  • Lab Exercise 5b: Call Flows with DNS
  • Lab Exercise 6: SIP Trunks
  • Lab Exercise 7: Security with IPSec
  • Lab Exercise 8: Security with Secure SIP

Public Classroom Public Classroom
Participants from multiple organisations. Topics usually cannot be customised
From 2618EUR
Private Classroom Private Classroom
Participants are from one organisation only. No external participants are allowed. Usually customised to a specific group, course topics are agreed between the client and the trainer.
Private Remote Private Remote
The instructor and the participants are in two different physical locations and communicate via the Internet
From 2690EUR
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The more delegates, the greater the savings per delegate. Table reflects price per delegate and is used for illustration purposes only, actual prices may differ.

Number of Delegates Public Classroom Private Remote
1 2618EUR 2690EUR
2 1684EUR 1695EUR
3 1373EUR 1363EUR
4 1217EUR 1198EUR
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Course Discounts

Upcoming Courses

VenueCourse DateCourse Price [Remote/Classroom]
Berlin Mon, 2016-11-07 08:002018EUR / 2618EUR
BremenMon, 2016-12-19 09:302690EUR / 3340EUR
DüsseldorfMon, 2016-12-19 09:302690EUR / 3340EUR
HannoverWed, 2016-12-21 09:302690EUR / 3340EUR
StuttgartWed, 2016-12-21 09:302690EUR / 3340EUR

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