Vikas Shokeen
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...
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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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Vikas Shokeen
- Nov 7, 2020
- 7 min
04 - VoWifi Interfaces Links Protocols (New)
SWu Interface - Internet Key Exchange version 2 (IKEv2), RFC 7296. We will also cover IPSEC Overview here S2b Interface - GTP Protocol,...
5,810 views
Vikas Shokeen
- Nov 2, 2020
- 13 min
03 - VoWifi ePDG AAA and Architecture (New)
VoWifi Nodes Role of ePDG , AAA & UE Role of PGW , HSS , IMS , PCRF for VoWifi KPI & Performance of VoWifi Measure User Experience of...
10,754 views2 comments
Vikas Shokeen
- Oct 31, 2020
- 10 min
02 - VoWifi Architecture Overview (New)
- VoWiFi Architecture VoWiFi Framework VoWiFi Overview - Various Architecture Options for Wifi Calling Untrusted WLAN Trusted WLAN IMS...
12,594 views
Vikas Shokeen
- Oct 30, 2020
- 12 min
01. VoWifi Introduction & What is Wifi Calling ? (New)
Why you need Vo-Wifi ? Or Wifi Calling ? How to avail VoWiFi Service ? Role of Mobile Operator in VoWiFi Service ? How to enable VoWifi...
3,462 views
Vikas Shokeen
- Feb 2, 2019
- 8 min
04. Introduction to Hypervisor , Docker & Container
What is Hypervisor ? - Container & Docker ? - container Vs hypervisor - Benefits of Container - Use Cases in Telco Industry
4,550 views
Vikas Shokeen
- Feb 2, 2019
- 6 min
03. Introduction to SDN – Software defined network
SDN Role in Data and Forwarding Plane , Control Plane & Management Plane - SDN Framework & Architecture - Openflow Architecture
4,286 views
Vikas Shokeen
- Jan 28, 2019
- 8 min
02. Introduction to NFV : Network function Virtualization
NFV : Network function Virtualization : Introduction & Basics - Features of NFV - ETSI Framework & Specs - NFV Architecture
7,416 views
Vikas Shokeen
- Jan 27, 2019
- 8 min
01. Introduction to Telco Cloud – Overview & Benefits
Telco Cloud - Why Cloud Network are required in Telecom ? - How Cloud and Virtualization helps for better Capacity Management ?
5,910 views
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)
17,396 views
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 ,
36,632 views
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
19,122 views
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
41,633 views
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)
33,857 views
Vikas Shokeen
- Mar 6, 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
25,931 views
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
12,331 views
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