Course description
VoLTE and the IMS
Learn Voice over Long Term Evolution (VoLTE), IP Multimedia Subsystem (IMS), and Session Initiation Protocol (SIP) in this intensive 5-day class. This class thoroughly studies call flow through the EU-TRAN, the EPC and into the IMS core. We will make the entire picture clear and backup all that we teach with call flows using an IMS platform. This course also covers enough of other technologies like Diameter and DNS to allow you to understand the complete picture. The lessons in this course are clear, very technical, and always practical.
Upcoming start dates
Training content
IMS Architecture & SIP Proxies
- Standards Bodies
- VoLTE Introduction
- The Building Blocks
- Call Control Paths
- Roaming and Visited
- VoLTE Access
- Call Flow
IMS Identifiers
- IMS IDs
- UICC
- IMS URI
VoLTE and IMS Architecture
- HSS
Bearer and APNs
- Commonly Utilized Bearers
Power up Process
- Overview
- System Acquisition and RRC Connection Setup
- Network Attach
Handover Between eNodeBs
- Idle Mode
- Active UE
Tracking and Paging A UE
- Overview
- Tracking and Paging a UE
SIP Architecture.
- The Big Picture
- SIP Message Format
- IMS SIP Transactions
- SIP Control Path
- Proxy vs. B2BUA
- SIP URI
SIP Via Paths
- The Via Header
- The SIP Transaction
- Impact of Via Path on the SIP Dialog
SIP Route Headers
- RR and Route
- Looping
Basic SIP & IMS Specific Headers
- Start Line
- Via:
- Via: branch parameter
- From:
- To:
- Call-ID:
- SIP Dialog ID
- Contact:
- CSeq: (Command Sequence)
- Content-Type:
- Content-Type: message/sipfrag RFC 3420
- Content-Length:
- Max-Forwards:
- Allow:
- OPTIONS
- User-Agent:
- Supported:
- P-Preferred-Identity: and Privacy: RFC 3325 (UA to P-CSCF)
- P-Preferred-Identity: to P-Asserted-Identity:
- P-Access-Network-Info: RFC 3455
- Authorization: RFC 3261 Section 22.2
- Path: RFC 3327
- Service-Route: RFC 3608
- Introduction to SigComp
- SigComp Example
Diameter
- Overview
- Diameter Message Structure
- Customization
- Registration Call Flow
- SCTP
H.248
- Overview
- H.248 in the IMS Core
Initial Filter Criteria (iFC)
- iFC Function
- Data Structure
- iFC Logic
- iFC Example
Presence
- The Presence Model
- IMS Call Flow
- Basic vs. Rich Presence
- Message Examples
Session Description Protocol (SDP)
- Overview
- Lines
- Offer/Answer
- Preconditions
QoS
- Enforcing QoS
IMS Call Flow Examples
- SIP REGISTER
- De-Registration
- Media Relay
Circuit Switched Fallback
- CSFB Originating
- CSFB Terminating
- Ladder Diagram
SR-VCC
- Overview
- Routing Number
- SR-VCC Control Paths
- The Media Path
- SR-VCC Call Flow
Emergency Call Flow
- References
- Components
Charging in the IMS
- Charging Systems Overview
- Charging and Call Flow
DNS
- Zone File
- Locating SIP Servers
Costs
- E-Learning fee: $295.00
- Contact the provider for more information about pricing for on-site delivery option
Why choose Alta3?
25+ years specializing in technology training
Over 95% student satisfaction rate
Training delivered in 9+ countries
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Alta3 Research
Since 1997, Alta3 Research has been empowering organizations and individuals using their expert approach to Cloud, DevOps and Telecom training. We develop and perform technical training via live classroom, online classes and our library of self-paced learning videos and labs....