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A 2 day
training course

SIP in IMS training course description

The IP Multimedia Core Network Subsystem (IMS) is defined by 3GPP as a new mobile infrastructure. This advanced course looks at the use of SIP in the IMS.

Key outcomes from this course

By the end of the course delegates will be able to:
  • Describe the role of SIP in the IMS.
  • Explain how SIP works in the IMS
  • Describe the SIP architecture in the IMS.
  • Explain how SIP and SDP are used in basic IMS procedures.

SIP in IMS training course details

Who will benefit:
Technical telecommunications staff.
SIP for engineers.
2 days

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.

Overall ratings for this course:

Course review

"Hard concepts were explained very simply."
J. S., Framestore CFC
"Excellent presentation - very good course structure."
B. M., London Internet Exchange

SIP in IMS training course contents

SIP review, SIP elements, Simple SIP call flow, What is IMS? Why IMS? Why SIP in the IMS? SIP and IMS relationship.

3GPP, IETF, 3GPPr5, 3GPPr6, 3GPP SIP extensions.

IMS architecture, SIP interfaces.

Server functions
Registration, home and away, location and directory services, stateful and stateless servers.

SIP servers

SIP registration in the IMS
SIP REGISTER, IMS identities, registration process, P-CSCF discovery, S-CSCF assignment, IMS subscriber and IMS registrar signalling flow. IMS routing in the registration process. Re and De-registration.

SIP sessions in the IMS
SIP INVITE, Establishing IMS SIP sessions, User at home network, user roaming, IMS offer answer architecture, SIP preconditions, QoS, reserving resources, IMS bearer network interactions, IMS subscriber and IMS service signalling flow. Typical call flows.

SIP services in the IMS
IMS specifications, IMS service procedures, call scenarios, call services. IMS multimedia related procedures. IMS presence, IMS messaging, IMS conferencing, IMS PoC.

SIP and the PSTN, URIs and ENUM, NAPTR, SRV, ISUP numbers and URI mapping, IAM and INVITE, SIP to PSTN/ISUP mapping, PSTN/ISUP to SIP mapping, PSTN to PSTN over SIP. MIME media types for ISUP, DTMF transmission, CLIP and CLIR in SIP, ring tone, split gateways

ISO standards, translation versus tunnelling.

IMS SIP extensions
Security (RFC 3310, 3329), Resource reservation (RFC 3312), Media authorisation (RFC 3313), SigComp (RFC 3320), P Headers (RFC 3325, 3455), Mobile registration (RFC 3327, 3608), Reg event (RFC 3680), Preconditions (RFC 4032)

IMS security architecture, identities, HTTP digest, TLS. Affect of security on SIP media sessions.

Why Choose Us

SNT trainers score an average of over 90% on the three main areas of:
  • Ability to teach
  • Technical knowledge
  • Answering questions
“Excellently presented by a very knowledgeable and enthusiastic trainer.” P.D. General Dynamics

We limit our maximum class size to 8 delegates; often we have less than this. This ensures optimal interactivity between delegates and instructor.
"Excellent course. The small class size was a great benefit…" M.B. IBM

We write our own courses; courseware does not just consist of slides and our slides are diagrams not bullet point text. A typical chapter provides clearly defined objectives with a chapter overview, slides with text underneath, a quiz at the end to check the learning of the students. Hands on exercises are at the end and are used to reinforce the theory.

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