Advanced VoLTE Training

Advanced VoLTE Training


Advanced VoLTE Training Course Description

Advanced VoLTE Training covers VoLTE planning, VoLTE implementation, end-to-end signaling, security, validation and verification, testing, operations and troubleshooting.

Learn about the importance of QoS and policy control to VoLTE, delivery of rich media services, differentiated services to handle various services including voice, rich media, and video services, and finally VoLTE client end-to-end access and the role of UE/eNB across VoLTE.

Customize It:

With onsite Training, courses can be scheduled on a date that is convenient for you, and because they can be scheduled at your location, you don’t incur travel costs and students won’t be away from home. Onsite classes can also be tailored to meet your needs. You might shorten a 5-day class into a 3-day class, or combine portions of several related courses into a single course, or have the instructor vary the emphasis of topics depending on your staff’s and site’s requirements.

Advanced VoLTE TrainingRelated Courses:

Duration: 5 days


Describe concepts behind VoLTE and voice calls over LTE/EPC/IMS
List functions in mobile networks deploying VoLTE
List steps toward successful implementation of VoLTE
Describe importance of QoS and Policy Control to VoLTE
Illustrate VoLTE network architecture
Explain VoLTE operational scenarios, IMS security and registration, related SIP messages and related parameters for: VoLTE registration, VoLTE to VoLTE call setup and release, VoLTE to PSTN call, and Emergency Calls
Describe VoLTE deployment in parallel with Video calls over LTE and RCS multimedia services such as video share, multimedia messaging, chat and file transfer
List lessons learned on RCS and VoLTE launches

Course Content:

VoLTE Network Components in LTE and IMS

Overview of LTE/EPC
Overview of IMS
New ISIM VoLTE/IMS user identities
IMS nodes
SIP proxies and registrar servers
Media gateways
Call agents
Session border controllers (SBCs) and application-layer gateways
Application servers
EUTRAN components (eNodeB)
EPC components (S-GW, P-GW, MME, HSS, PCRF)
IMS components (x-CSCF)

VoLTE and IMS Procedures and Protocols

IMS Procedures
PDN Connectivity
NAS Signaling
Bearer Setup and EPS Attach
P-CSCF Discovery
SIP Registration
Event Subscription
VoLTE Call

VoLTE and IMS Related Associations and Protocols

Session Description Protocol (SDP)
Real-time Transport Protocol (RTP)
RTP Control Protocol (RTCP)
VoLTE and IMS security association
User Agent and a P-CSCF association
Role of ISIM and IMS public and private keys
ISIM and the HSS association
SIP Registration
IMS registration
IMS registration with IMS AKA
SIP subscribe precudye
SIP de-registration and UE power down
SIP de-registration on network release
Event Subscription
VoLTE Call
SMS over LTE
End-to-end system tests
VoLTE test cases

VoLTE Operational Scenarios

VoLTE setup
LTE attach call flow
VoLTE client end-to-end access
UE/eNB across VoLTE
IMS APN bearer setup
Default bearer setup
VoLTE Registration
IMS registration
SIP signaling over IMS/P-CSCF
Application registration
Voice Call Continuity
Emergency Call Support
Emergency session call flows

Basic VoLTE Setup

LTE Attach Call Flow
Attach Request
Update Location Request
Update Location Ack (IMS APN, QCI 5)
Create Session Request (IMS APN, QCI 5)
Authentication HSS PCRF SPR
IMS Registration Call Flow

VoLTE and IMS Related Associations and Protocols

VoLTE Voice-Only Call
VoLTE voice codec options
VoLTE Voice-Only Call with Wideband AMR
VoLTE Call Release Initiated by the Calling
VoLTE Call Release Initiated by the Called
Redirect VoLTE Call to Voice Mail after
Redirect VoLTE Call Not Answered to Voice
Originator Cancels the Call Before Ringing
Originator Cancels Call after Ringing
Loss of PDN Connectivity
Loss of SIP Signaling
Loss of Media Bearer
Voice Call Waiting, Second-Party Hold
Voice Call Switch Hold
Handover During VoLTE Voice-Only Call
VoLTE Emergency Registration
VoLTE Emergency Call
VoLTE IR.94 Registration with IMS AKA
VoLTE 2-Way Video Call with 2-Way Audio
Voice Call Transition to Video Call
Voice Call Transition to Video Call Rejected
Video Call Put on Hold
Video Call Switch Hold

Importance of QoS and Policy Control to VoLTE

VoLTE Test Challenges and Requirements
Testing VoLTE’s complex mix of voice, video, and messaging services
Testing functionality, quality, and resiliency
VoLTE testing
Functional validation
Capacity planning and network scalability
Effectiveness of QoS and policy control mechanisms
Voice and video quality
System interoperability
Network resiliency and error handling

Unique Challenges in VoLTE

VoLTE and he multimedia telephony (MMTel) service
Rich Communications Services (RCS)
joyn™ by GSMA Potential
Pitfalls of poor UE and network design
Best practices and methodologies for guaranteeing mobile subscribers QoE
Sscalability and bottlenecks of their specific
Network designs validating VoLTE
VoLTE voice quality
VoLTE voice quality with wideband AMR
VoLTE call release initiated by the calling party
VoLTE call release initiated by the called party
VoLTE system evaluation including:
Functional validation
Capacity planning and network scalability
Effectiveness of QoS and policy control mechanisms
Voice and video quality
System interoperability
Network resiliency and error handling
Enriched voice, enlivened video, and intuitive messaging

VoLTE Testing and Validation

UE Registration with the IMS network
Rich media

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    Time Frame: 0-3 Months4-12 Months

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