Description
Advanced SIP training course provides a technical details of SIP protocol.
Objectives
After successfully completing the course the attendees will:
- Understand advanced topics of SIP
- Understand advanced SDP concepts
- Explore the architect and components of SIP
- Behavior of SIP Clients and Servers
- Examine behavior of SIP User Agents
- Examine behavior of SIP Proxy and Redirect Servers
- Analyze security considerations for SIP
- Understand the role of SIP in IMS, HSPA/HSPA+, LTE
- Examine SIP Other Important Topics
Course Outline
Advanced SIP Training content
VoIP Protocol Stack
- RTP and RTCP
- H323 Protocols
- Session Initiation Protocol (SIP)
- Media Gateway Control Protocol (MGCP)
- Megaco/H248
- SRTP
Session Description Protocol (SDP)
- SDP Fields and Parameters
- SDP Media Information
- Type of media (video, audio, etc)
- The transport protocol (RTP/UDP/IP, H320, etc)
- The format of the media (H261 video, MPEG video, etc)
- Multicast address for media
- Transport Port for media
Session Initiation Protocol (SIP)
- Context of SIP
- SIP Functions
- SIP Hardware Architecture and User Agent (UA)
- SIP Servers
- SIP Protocol Model and Addressing
- Request and Response Model
- Locating a SIP Server
- SIP Transaction
- SIP Invitation
- Locating a User
- Changing an Existing Session
- Registration Services
- SIP Message Format
- SIP Methods
- Status Code Definitions
- Analysis of SIP Response Codes
- SIP Header Fields
- SIP Registration
- The Registrar
- SIP Registration with Authentication
- User Cancels Registration
- SIP Call Setup via Proxy Server
Behavior of SIP Clients and Servers
- Requests and Responses
- Source Addresses, Destination Addresses and Connections
- Unicast and Multicast UDP
- Reliability for BYE, CANCEL, OPTIONS, REGISTER
- Reliability for INVITE Requests
- Reliability for ACK Requests
- ICMP Handling
Behavior of SIP User Agents
- Caller Issues Initial INVITE Request
- Callee Issues Response
- Caller Receives Response to Initial Request
- Caller or Callee Generate Subsequent Requests
- Receiving Subsequent Requests
Behavior of SIP Proxy and Redirect Servers
- Redirect Server
- User Agent Server
- Proxy Server
- Proxying Requests
- Proxying Responses
- Stateless Proxy: Proxying Responses
- Stateful Proxy: Receiving Requests
- Stateful Proxy: Receiving ACKs
- Stateful Proxy: Receiving Responses
- Stateless, Non-Forking Proxy
- Forking Proxy
Security Considerations for SIP
- Confidentiality and Privacy: Encryption
- End-to-End Encryption
- Privacy of SIP Responses
- Encryption by Proxies
- Hop-by-Hop Encryption
- Via field encryption
- Message Integrity and Access Control
- Authentication
- Trusting networks and responses
- SIP Authentication using HTTP Basic and Digest Schemes
- Management Information Base for SIP
- The Stream Control Transmission Protocol (SCTP) as a Transport for for the SIP
- Compressing the SIP
SIP & IMS in UMTS/LTE
- 3GPP SIP Decisions
- SIP from terminal to network
- SIP between network call nodes
- SIP Protocol & Service analysis
- Deployments in 3GPP
- Security
- Charging
- QoS and Signaling
- IMS Architecture : P-CSCF, I-CSCF, and S-CSCF
- IMS Building Blocks
- Applications Layer
- End-user telephony service logic
- AIN call trigger points
- Non-telephony based services
- APIs for enterprise & legacy applications
- Session Control Layer
- End Point Registration
- Session setup
- QoS establishment
- Transport & Endpoint Layer
- Bearer Services, Media Conversion (PCM > IP)
- Special functions: announcements, touch tones collection, voice recognition, speech
- Signaling Flows
- Instant Messaging & Presence
- Push-to Talk
- Conferencing
- OSA and Parlay
SIP Other Important Topics
- A SIP Event Notification Extension for Resource Lists
- The Message Session Relay Protocol
- The Extensible Markup Language (XML) Configuration Access Protocol (XCAP)
- RPID: Rich Presence: Extensions to the Presence Information Data Format (PIDF)
- CIPID: Contact Information in Presence Information Data Format
- A Mechanism for Content Indirection in SIP Messages
- Enhancements for Authenticated Identity Management in the Session Initiation Protocol Globally Routable User Agent (UA) URIs (GRUU) in the SIP
- DHCP and DHCPv6 Option for SIP Servers
- HTTP Digest Authentication Using Authentication and Key Agreement (AKA)
- Integration of Resource Management and SIP
- SIP Extension for Instant Messaging
- S/MIME AES Requirement for SIP
- Advanced Instant Messaging Requirements for the SIP
- Transcoding Services Invocation in the SDP Using 3Pcc
- E.164 numbers with the SIP
- SIP Interoperability Testing
Who Should Attend
Software/System/Hardware engineers and developers
Prerequisites
SIP fundamentals course or equivalent training program is recommended.