Vikas Shokeen

Building Concepts for Lifetime – Simplifying Technology & Specs

This is a Non-Profit Site aimed at Demystifying 3GPP telecom Specs in simplified version

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    08 - VoLTE Evolution (New)
    Vikas Shokeen
    • Nov 7, 2020
    • 9 min

    08 - VoLTE Evolution (New)

    Section # 1 (Evolution of Telephony) · Difference between 2G / 3G –vs- 4G Non-VoLTE –vs- VoLTE Networks · Services in Non-VoLTE 4G Vs...
    3,871 views
    07. VoLTE IMS KPI & Performance
    Vikas Shokeen
    • Sep 16, 2018
    • 11 min

    07. VoLTE IMS KPI & Performance

    RSR : Registration Success Ratio (%) - CSSR : Call Setup Success Rate (%) - CST : Call Setup Time (s) - MHT/ACD : Average Call duration (s)
    8,726 views
    06. VoLTE Interfaces , Protocols & IMS Stack
    Vikas Shokeen
    • Aug 8, 2018
    • 13 min

    06. VoLTE Interfaces , Protocols & IMS Stack

    Sh , Ro , Cx , Rx , Sv , ISC , Mw , Mg , Mi , Mj , Mr / Mr‘ , UT,S1MME , S5/S8 , S10 , S11 , S6a , Gx , Gy , X2 , SGs , S1U , S5/S8 & SGi ,
    18,232 views
    05. Single Radio Voice Call Continuity (SRVCC) and CSFB Vs SRVCC
    Vikas Shokeen
    • Jun 10, 2018
    • 11 min

    05. Single Radio Voice Call Continuity (SRVCC) and CSFB Vs SRVCC

    Single Radio Voice Call Continuity (SRVCC) - CSFB (circuit switched fallback) - PS to CS handover - CSFB Vs SRVCC - SRVCC , aSRVCC , eSRVCC
    9,739 views
    04. VoLTE SIP Call Flow – Mobile Originating (MO) & Terminating (MT)
    Vikas Shokeen
    • May 21, 2018
    • 10 min

    04. VoLTE SIP Call Flow – Mobile Originating (MO) & Terminating (MT)

    SIP Call Flow - Mobile Originating (MO) & Terminating (MT) - INVITE - 100 Trying - 183 Progress SDP - PRACK - 200 OK - UPDATE - 180 Ringing
    19,783 views
    03. VoLTE SIP IMS registration Call Flow Procedure & Default Vs Dedicated Bearer in LTE
    Vikas Shokeen
    • May 7, 2018
    • 9 min

    03. VoLTE SIP IMS registration Call Flow Procedure & Default Vs Dedicated Bearer in LTE

    SIP IMS registration - Default Vs Dedicated Bearer in LTE - SIP and IMS Registration - TAS Registration - QCI-1 ( Voice ) , QCI-5 (SIP)
    17,760 views
    02. VoLTE IMS Architecture
    Vikas Shokeen
    • Mar 5, 2018
    • 12 min

    02. VoLTE IMS Architecture

    VoLTE IMS Architecture - SIP Handset , Underlying LTE Network , IMS Core - SIP Servers , P-CSCF , I-CSCF , S-CSCF , TAS , MMTEL , BGw , MRF
    13,518 views
    01. What is VoLTE – IMS Overview , Basics & Fundamentals
    Vikas Shokeen
    • Mar 1, 2018
    • 11 min

    01. What is VoLTE – IMS Overview , Basics & Fundamentals

    Network Evolution to VoLTE , VoLTE - Benefits for Users , Operators . VoLTE Challenges & Handling Congestion Scenarios
    7,783 views

    Original Content © 2020 by Vikas Shokeen

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