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Deepak P



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Iptestlabs provides both Classroom and online training for SIP VoIP and IMS Courses across India. Our courses are excellent for anyone wishing to gain a solid introduction and deep dive to this technology and also understand a roadmap for planning and implementation.     VoIP Training Course Content Overview of VoIP
  • Voice and data convergence
  • Why VoIP?
  • Applications for VoIP
  • Markets for VoIP
  • Who uses VoIP?
  • Components of a VoIP system
  • 323 architectural overview: Terminals, Gateways, Gatekeeper, MCUs
  • Status of VoIP as an emerging technology
Operating Voice over IP
  • The issues when operating Voice over IP
  • Delay, Talker overlap, Echo
  • Jitter, Packet loss
  • Out of Order Delivery
  • The role of Voice Processing and DSP
  • Real-time Transport Protocol (RTP)
  • The role of RTP
  • Real-time Transport Control Protocol (RTCP)
  • Implementing centralised number and dial plans
  • Mapping E.164 addresses to IP addresses
Introduction to Voice over IP signalling
  • The major architectures and standards for Voice over IP ITU H.323
  • MGCP and Megaco/H.248
  • Cisco SCCP ("Skinny")
  • Asterisk IAX
  • Current status: H.323 vs SIP vs Megaco
Understanding IP QoS
  • The need for QoS
  • Defining IP QoS
  • IP Integrated Services (Int-Serv)
  • Resource ReserVation Protocol (RSVP)
  • IP Differentiated Services (Diff-Serv)
  • The role of MPLS
  • Interworking Int-Serv and Diff-Serv
  • Common Open Policy Service (COPS)
Current Voice over IP Solutions
  • Classifying Voice over IP products
  • Mainstream VoIP manufacturers
  • Mainstream VoIP Gateways and PBXs
  • Mainstream IP-based PBXs
  • IP Telephony Call Agents and Softswitches
  • IP Soft Phones
  • PC IP Telephony Cards
  • VoIP test equipment
Developments in VoIP
  • Commercial IP Telephony services
  • Skype, Google Talk, and more
  • Open Source VoIP
  • Voice over Wi-Fi (VoWiFi)
  • Roaming between cellular and VoWiFi hotspots
  • VoiceXML applications
  IMS Training Course Content   IMS Architecture
  • Overview
  • Roaming:- Home and Visited Networks
  • Databases and Functions
    • HSS - Home Subscriber Server
    • SLF – Subscription Locator Function
  • Call Session Control Function (CSCF)
  • Media Gateway Control Function (MGCF)
  • IP Multimedia Subsystem - Media Gateway Function (IMS-MGW)
  • Multimedia Resource Function Controller (MRFC)
  • Multimedia Resource Function Processor (MRFP)
  • Breakout Gateway Control Function (BGCF)
  • Application Server (AS)
  • Interconnection Border Control Function (IBCF)
  • Transition Gateway (TrGW)
  • Location Retrieval Function (LRF)
  • Signalling Gateway Function (SGW)
  • Global Text Telephony Specific entities
  • Security Gateway (SEG)
  • Application Function (AF)
Interfaces and Reference Points
  • Cx, Gm, Mn, Mg, Mr etc.
  • IP multimedia subsystem procedures
  • General
  • Session-unrelated procedures
  • CSCF related procedures
  • Location management
  • User data handling
  • Authentication
  • User identity to HSS resolution
  • Implicit registration
IMS Protocols
  • SIP – Session Initiation Protocol
  • Diameter Overview
  • Mapping of Cx operations and terminology to Diameter
  • Cx message to Diameter command mapping
  • Message flows
  • COPS - Common Open Policy Service RFC 2748
  • 248 – MEGACO
  • RTP and RTCP

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