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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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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...
Vikas Shokeen
Nov 7, 20209 min read
12,288 views

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,...
Vikas Shokeen
Nov 7, 20207 min read
12,915 views

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...
Vikas Shokeen
Nov 2, 202013 min read
22,837 views
2 comments

02 - VoWifi Architecture Overview (New)
- VoWiFi Architecture VoWiFi Framework VoWiFi Overview - Various Architecture Options for Wifi Calling Untrusted WLAN Trusted WLAN IMS...
Vikas Shokeen
Oct 31, 202010 min read
27,075 views

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...
Vikas Shokeen
Oct 30, 202012 min read
6,323 views

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)
Vikas Shokeen
Sep 16, 201811 min read
34,131 views

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 ,
Vikas Shokeen
Aug 8, 201813 min read
69,778 views

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
Vikas Shokeen
Jun 10, 201811 min read
34,882 views

01. What is VoLTE – IMS Overview , Basics & Fundamentals
Network Evolution to VoLTE , VoLTE - Benefits for Users , Operators . VoLTE Challenges & Handling Congestion Scenarios
Vikas Shokeen
Mar 1, 201811 min read
19,018 views
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