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Courses / 5G / Delivering 5G Voice

Delivering 5G Voice

Course details Content Purchase options Frequently Asked Questions
Learning Time:
12 Hours
Level:
Intermediate
Delivery:
On-demand Live onsite Live online
CPD Credits:
12
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Course Details

This course will explain how voice services are delivered across a 5G system, utilizing IMS based voice services termed VoNR (Voice over New Radio). The course will cover areas such as architectural requirements, protocols, APIs and initial procedures. In addition, a variety of call scenarios will be examined, including service continuity scenarios related to LTE and CS networks.

This course is available as part of a package or for individual purchase. View purchase options to learn more.
Gavin heads up Mpirical’s training product portfolio, which includes all course development alongside the development of NetX. Gavin’s main area of focus is 4G and 5G core networks, with considerable expertise gained over the 20 years of training experience he has within the mobile telecommunications space.
£295
for 6 months access

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Module 1
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Architectural Requirements for 5G Voice

Deploying VoNR:

  • Deployment Considerations.
  • Coverage.
  • Deployment Complexity.
  • Return on Investment.
  • Interworking.

VoNR High Level Network Architecture:

  • Key Components.
  • VoNR Standardization.
  • NG.114 Features.

5G Access Network:

  • Key Architectural Components.
  • 5G Service Based Architecture.

IMS Call Control Network:

  • High Level Concept.
  • IMS Requirements.
  • IMS Control Plane Protocols.
  • IMS User Plane Protocols.

IMS Architecture:

  • High Level Architecture.
  • Call Session Control Functions:
    • P-CSCF, S-CSCF, I-CSCF, E-CSCF.
  • Access Transfer Functions:
    • ATCF, ATGw.
  • Home Subscriber Server.
  • IMS Voice Application Servers.
  • Session Border Controllers.
  • IMS Deployment.

End to End VoNR Architecture.

Module 2
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VoNR Foundation Technologies

VoNR Protocols – Session Initiation Protocol:

  • SIP Features.
  • SIP User Agents.
  • SIP Message Exchange.
  • SIP Message Format.
  • SIP Methods.
  • SIP Message Body.
  • SIP Responses.
  • Routing SIP Messages.
  • Back to Back User Agents.

VoNR Protocols – Diameter:

  • Diameter Base Protocol.
  • Diameter Base Header.
  • Diameter Client and Server.
  • Diameter Agents.

VoNR Protocols – Service Based Architecture:

  • Service Based Interface Concepts.
  • SBI Protocol Stack.
  • IMS Service Based Interfaces.

5G Key Concepts Associated with VoNR:

  • QoS Model in 5G.
  • QoS Rules and Packet Detection Rules.
  • QoS Flow Parameters.
  • Resources for VoNR to VoNR Calls.

PCC Key Concepts Associated with VoNR:

  • SDFs and Flow Filters.
  • PCC High Level Operation.
Module 3
View

Initial Procedures for 5G VoNR

IMS Identities:

  • Private User Identities.
  • Public User Identities.
  • USIM Derived Temporary Identities.
  • Device Identification.
  • Public Service Identity.

Registration - 5G Considerations:

  • 5G Flow of Events.
  • PDU Session Establishment.
  • Home Operated Services.
  • Summary of 5G Connectivity.

IMS Registration Overview.

IMS Registration Analysis – Initial Registration:

  • Initial Registration Request (UE to P-CSCF).
  • S-CSCF Selection.

IMS Authentication and Key Agreement:

  • Authentication Vector Acquisition.
  • IMS-AKA Authentication Vector Generation.
  • Authentication Challenge.

Reregistration and Subscriber Profile Acquisition:

  • Second Register.
  • Authentication and Subscriber Profile Acquisition.
  • Service Profile and Final 200 OK.

Post Registration:


  • Third Party Registration.
  • Event Subscription.

Service Configuration.

  • Ut Interface.
  • XCAP (XML Configuration Access Protocol).
Module 4
View

5G Voice Call Procedures

VoNR Media:

  • Audio Transport.
  • Port Usage for RTP/RTCP.
  • Describing the Media Stream – SDP.

VoNR Call Fundamentals:

  • End to End VoNR Call Flow Summary.
  • Understanding the IMS Signalling Flow - SIP Requests.
  • Understanding the IMS Signalling Flow - SIP Responses.
  • Stages of a VoNR Call Establishment.
  • 5G Considerations.

VoNR to VoNR Call Establishment:

  • SIP INVITE Composition.
  • Media Anchoring (Calling Party).
  • Routing the SIP Signalling to the Called Party.
  • Application Servers (Called Party).
  • Media Anchoring (Called Party).
  • Delivering the SDP Answer.
  • Bidirectional Media (Called Party).
  • Bidirectional Media (Calling Party).

Voice QoS Flow Establishment:

  • PCC Interaction.
  • PCC Rule Creation.
  • QoS Flow Establishment.

PRACK, Preconditions and Acceptance:

  • Provisional Response Acknowledgement.
  • Meeting Preconditions.
  • Alerting and Call Acceptance.

VoNR Call Termination:

  • QoS Flow Removal.
  • Media Path Removal.
Module 5
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VoNR Service Features

VoNR Supplementary Services:

  • TAS Responsibilities.
  • Example – Originating Identification Restriction.
  • Example – Communication Forwarding.

Additional IMS Functions:

  • Multimedia Resource Function.
  • Media Server Capabilities.
  • Media Server Deployment.

Early Media:

  • Early Media General Concept.
  • CAT Procedure.

IMS Messaging Services:

  • Support for SMS.
  • Mobile Originated SMS.
  • Mobile Terminated SMS.
  • OMA Converged IP Messaging.

IMS Video Calling.

  • Video Calling General Concepts.
  • Direct Launch Video Call.
Module 6
View

Legacy Interworking for 5G Voice

Supporting Legacy Voice Through the Migration to VoNR:

  • Supporting IMS and CS Calls.
  • Architectural Considerations.
  • Media Gateway Control Function.
  • IMS Media Gateway.
  • Gateway Control Protocol (H.248).

E.164 to SIP Mapping (ENUM):

  • ENUM Concept.
  • Example - IMS to IMS ENUM Query.
  • Example - MGCF to IMS ENUM Query.
  • ENUM Types.

VoNR to PSTN CS Procedures:

  • Determining PSTN Breakout.
  • VoNR to PSTN Call Flow.

PSTN to VoNR CS Procedures.

Emergency Services:

  • Emergency CSCF.
  • Emergency Services Call Flow.
Module 7
View

Interworking with 3GPP Networks

IMS Service Centralization and Continuity.

  • Terminology.
  • ICS Basic Concept.
  • Service Continuity Basic Concept.
  • Service Centralization and Continuity Application Server.

Single Radio Voice Call Continuity:

  • Architectural Considerations.
  • SRVCC Evolution.
  • Support for SRVCC.

VoNR SRVCC:

  • SR-VCC Procedure (Release 10+).
  • Registration Procedure Utilizing an ATCF.

Access Transfer Procedure Using the ATCF.

Fallback Mechanisms:

  • EPS and RAT Fallback.
  • High Level Fallback Procedure.
  • Emergency Services Fallback.
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£295
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Frequently Asked Questions

Will I receive certification for completing the course?

Yes, all our courses provide a shareable certificate of completion following the test of understanding.

How long do I get access to the course?

On-demand courses are accessible immediately following purchase. Each course will have a different access period ranging from 3-6 months on average. You can continue to access the Mpirical learning platform after your course licence expires; however, you won’t be able to view any course content or learning tools unless you are a paid customer.

What else do I get with a course?

All students benefit from automatic access to our ‘Ask the Trainer’ feature with an on-demand course purchase. You will also get access to our acclaimed network visualisation tool, NetX.*

*NetX is not included with the Mini Telecoms MBA course or partner training.

Can I access the course offline?

Offline access is not currently available. You must use a connected device to access the course and learning tools. However, course pdfs and reference documents are downloadable.

Is there recommended follow-on training?

Yes, we do recommend follow-on training courses within the Mpirical learning platform.

How do I choose between a live course or on-demand course?

Our live courses are generally reserved for teams and enterprises of 10 or more. If you’d like to learn more about purchasing a single course to be delivered at your location or online, please get in touch: enquiries@mpirical.com.