2. VoLTE IMS Network Architecture tutorial

telecomtutorial.info
I have described VoLTE IMS Architecture in simplified way . Are you also finding 3GPP Specs complicated & Complex for VoLTE IMS .
It covers Role played by individual Networks Elements as mentioned below :-
VoLTE SIP Handset : SIP Support , UAC , UAS , User Agent , SIP-UA
Underlying LTE Network : MME , SGW , PGW , PCRF , HSS , Dedicated Bearer , QCI , Default Bearer
IMS Core : SIP Servers , P-CSCF , I-CSCF , S-CSCF , TAS , MMTEL , BGw , MRF , ATCF , ATGW , IBCF , MGCF , IM-MGW , TrGW
Voice Core or PSTN Network for Break-in or Break-out Calls
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Linkedin : www.linkedin.com/in/vikas-shokeen
Twitter : / vikas_shokeen
Facebook : / telecomtutorial
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Music by Joakim Karud / joakimkarud
No Copyright Motion Graphics Motion Graphics provided by www.youtubestock.com , KZbin Channel: goo.gl/aayJRf

[@shivangi.dubey19]

Abhijeet Chowdhary is the BEST. He can’t be replaced by anyone.

[@rossdemirel1365]

Your videos and color coded slides are absolutely amazing. Brings back the love to the Telco space

[@allgoal8409]

The best explains of viewed in net. Thank you very much!

[@SikandarKhan-ys1ik]

This guy is the champ!!!! His method of teaching should be a role model

[@dineshyamali9363]

Excellent Vikas, I cant resist myself to check your blogs.

[@kanchumarthisatyaramesh1146]

Very elegant. VOLTE-IMS made easy

[@meherkumar9]

Boss so good.. easy to understand and you made it very simple.. thanks for the video.

[@arungoyal9771]

Excellent Presentation and great work Vikas. (Y) Kudos!!

[@juanlogic7]

Never found something so easy to understand about IMS ... very well done!

[@landryjablak9638]

great presentation, very straight forward and clear explanations , i hope to find more videos like this

[@MrPaultay]

Excellent!! Fantastic slides & clean, clear presentation.

[@melvinsandoval5238]

Thank you master , for this big picture !

[@saratchand4275]

Excellent and awesome of this kind effort. keep continue .....people not only like but LOVE your effort. My True love credite goes to your work.--------its true comment by heart. Thanks you so much ... a wonderful lecture presented

[@alexanderalexandrov9790]

Good work .Hope you will up load more .You are helping very much

[@omarsherif5842]

Thank you for this simple clarification for IMS networks

[@AhmedAli-il5yx]

Best explanation for VOLTE IMS network. Very informative

[@LEVIOHM]

Thank you for this please back to this channel

[@uday2510]

This video is full of details and designed in breakups for better understanding.

[@JammingStation]

Amazing presentation & information..Please keep uploading videos. Thanks a lot :) :) !!

[@hasanmahmood8549]

An extraordinary beautiful demonstration. You are amazing

[@javedshaikh3187]

Very nice and simple way of presentation.. Good work Vikas. Highly appreciated

[@harjeetsinghmakkar5177]

A Very good video. Thanks for sharing your learning. IT is of international Quality.

[@VishalRaneHotelVisawaKarjat]

Really good detailing & love the starting Music ! Thankyou Sir Ji awaiting for 5G !

[@prabhu1967]

Excellent presentation sir, very easy to understand👍👍👍

[@AnilDwivediTalk]

thanks for providing this detailed video, it clears my basic understanding

[@samanthgouru2407]

Very much useful for VOLTE learners

[@suraj-suryawanshi]

Thank you so much for taking time and explaining us in such a easy way.

[@Nirajkantisamal]

So simply explained .. Much appreciated.

[@neilholmanmusic9087]

Excellent video. Well done & thank you Vikas!!

[@vcetaditya]

One of the best presentation I’ve seen

[@indoornauta]

It’s a great video, thanks for your hard work to reunite all those concepts in clear batches of info.

[@vitoruchoa8316]

Remarkable tutorial. Thanks!

[@laszlovona]

Really good overview. Thorough, still easy to follow/understand - and this goes to your other videos as well. I have been dealing with VoLTE for a few years now, and it would have been good to have such a good summary back in the days :) Beside engineering, are you also in education/consulting business ?

[@VeerPalSingh-mq8ln]

excellent knowledge i got. Appreciate your effort

[@himanimehta5]

Best .. sir keep making such informative videos👍🏻

[@mailosn6807]

thunk you for your great work, i hope that you explain with more details about all interface of communication between IMS node . thunk you so much

[@DiegoCeS]

Thanks a lot for this video!

[@saurabhyadav1731]

Excellent presentation ji👍

[@ptsdon]

Vikas does a great job of taking complicated procedures and protocols in an understandable step-by-step fashion. One thing is for sure, you know your subject matter and know how to relate this to your audience. With my deepest gratitude, thank you!! Vikas, I have one suggestion on the production side. The voice compression on your annunciations on your "s" sounds are sometimes a bit over-powering. It would be a fantastic idea to upgrade to a higher quality microphone. I use the Samson Stage PXD1, a wireless USB lapel microphone. It seems well balanced. You put a lot of work into your presentations, you deserve to have a really good microphone. Please don't get me wrong. You are a great speaker, and I can understand you very well. But the high-pitched ring caused by certain speech patterns limit the amount of time for continuous listening. Also, if you lower the volume on your intro music jingle, at the beginning of your videos, it will also be a significant improvement.

[@mohamedshlibik6190]

Thanks buddy for the great work

[@prashantanand370]

Well elaborated Vikas sir

[@NitinJainNoida]

Appreciate the effort with slides...but again Teaching is one thing and reading lines from PPT is another...

[@sunnyb2317]

Good information…keep it up….Thanks

[@AbdulRehman-nz4rg]

Hi Vikas, do u have any slides on LTE, as these slides are on VoLTE, or this playlist is good enough to learn both LTE and VoLTE?

[@normaquispesalazar8038]

Very helpfull.. Thank you :)

[@ShamsSohail]

Excellent Presentation

[@muralidharanramakrishnan4944]

one of the best ! truely life saver

[@funnymind7117]

Excellent Slides....

[@bogemon1]

hi I have a question on xcap. Call barring.. Is there a way to have a chat with you mate?

[@user-do9bx7ic1z]

Excellent briefing.

[@BlackBirdOverflow]

i really have this question, i wanna know where they put the HLR or HSS "server"? like what do they call that place(center, tower, hq)

[@leorana666]

Brilliant explaination, presentation.....can you plz just make a video about fixing ims not registered issue

[@sgowda6117]

you are awesome. well explained.

[@pallavibs988]

thank you for your great work on IMS , could you please provide material pdf or ppt ?

[@maheshg7228]

Hi, Your vidoes are very nice for concepts. Inrefernce to this, our organization has given your website link for core employees to learn the VOLTE concepts.

[@inamullahkhan9386]

Great efforts. thanks.

[@rover0310]

Quite easily explained indeed

[@gvaibhav8]

Good IMS explanation Vikas sir....

[@gvaibhav8]

Vikas Sir, please make video of Volte Call Flow with Message and their mandatory parameter(AVP).

[@victorfilatov6161]

You presented CSCF as P-I-S (CSCF). On VoLTE Architecture common scheme (11:45 min) there is no link betwen P-CSCF and I-CSCF. That's way P-S-I (CSCF) may be more correct for inderstanding. What do you think? In any case your video is so good. Thank you very much!

[@Reza90aa]

Is there any videos for SIP?

[@srimantapandit7881]

Mapping of 4G network with IMS and the connectivity of network elements of 4G with those of IMS? This is a question which we got in class. Can you help on how to answer this question

[@dped76]

thsnks for your help!!!

[@kakingamoses1059]

Good presentation

[@maheshg7228]

Thank you for the information can you please help me with the standard documentation for announcements flow in IMS by 3gpp

[@TelecomTutorialinfo]

Will come up with VoLTE Advanced Series soon to cover all these topics .. Stay Tuned

[@ahmadsultan6333]

Nice work.

[@andrecossee2215]

Thank you.

[@benjaminsamaniegoerazo3993]

why the P'CSCF is on the VPLMN?

[@rover0310]

Too good information

[@anshgupta8065]

Please make video on python & c Programming ,which is used in protocol development /testing with interview question.

[@Isaacclarke3330]

thank you so much

[@sivaverrigukka5103]

hi vikas can you do more videos on diameter protocol and PCRF

[@shilpadhadod4652]

Excellent

[@rohitatkan8582]

Sir, Could u pls explain in hindi also....its much easier to others who wants to learn in hindi or searching in hindi @telecomtutorial

[@samreenparkar4907]

Good idea give about ims core, application server and transport layer

[@dmitryslesarev2604]

Thanks, man!

[@lektimsina2132]

Can you please make a video in LTE explained in depth

[@SunilYadav-ol6cz]

Can u make something for ims security. Overall

[@siddharthgarg7214]

Very Nice

[@fazilabdulkhader4728]

When USIM itself having binary (i.e. SIP user agent) capability of deriving IMPI and IMPU, then why we need ISIM? what made ISIM more suitable for VoLTE? Awaiting for your reply. Thanks.

[@TelecomTutorialinfo]

ISIM carry a lot of Data specifically used in SIP protocols such as your IP Multimedia Private Identity (IMPI), domain, IP Multimedia Public Identity (IMPU) and cypher keys which makes it ready for VoLTE & Make it more secure USIM does not have those kind of information. It has instead IMSI, SPN, Cyphering and Authentication keys used during registration in UMTS/LTE networks , It needs Binary to convert and extract IMPI & IMPU for use in VoLTE

[@fazilabdulkhader4728]

TelecomTutorial info thanks for your reply sir

[@govindvenkata4950]

Very nice explanation but some times your going a bit speed .. reading the sentences fast.

[@heruprasetiyo1689]

thx u very much👍

[@firojaliraza]

Sir, please provide one video for VOWIFI netchnology

[@kpranati370]

thankyou sir

[@100rub5]

Users may be served by various sip server while only one sip server serves the customer.... did not understand this 😕

[@drivesim2678]

Nice

[@yuvrajpatil1710]

would you explain trans-coding little brief ? Grate video looking forward to watch other videos as well

[@TelecomTutorialinfo]

Will come up with VoLTE Advanced Series soon to cover this .. Stay Tuned

[@ranjithsimha658]

@@TelecomTutorialinfo Great presentations Vikas,please keep up your good work and can we have some sessions on Diameter protocol part in IMS & different IMS call flows which helps us to understand the AVP and other parameters of Diameter,when can we expect the VoLTE Advanced Series,eagerly waiting for this part as it is already more than an year when you had last updated about VoLTE Advanced Series,Thanks in Advance

[@nightstar1211]

Great

[@nikhilsoni654]

Can you give the pdf of 4g network.

[@MunaKumar-hs3nn]

Kindly make this video in hindi for smooth understanding .Thanks in advance..

[@samanthgouru2407]

Can u pls explain,what is meant by CODEC?

[@TelecomTutorialinfo]

VoLTE uses RTP ( which is Real time transfer Protocol ) . This is widely used protocol for real time communications such as Voice or Video . RTP ensures Reliable delivery . As with any digital voice system, a codec must be used. The VoLTE codec is that specified by 3GPP is the adaptive multi-rate, AMR codec that is used in many other cellular systems from GSM through UMTS and now to LTE. As far as speech codecs are concerned for VoLTE , the basic Adaptive Multi Rate (AMR) speech codec is mandatory; the popular data rate for good speech quality is 12.2 kbps . AMR is old codec & in use since few Years now after 3G Era . RTP over UDP is used to transport AMR speech.

[@sriranganayakulu8513]

Please add link to slides!!

[@granand]

Awesome Vikas ..I need some help . 1. Can some one tell me how many conformance test cases for each architecture element 2. Time it takes to run these test cases for each element of architecture 3. Preferred network simulator for each element of architecture .

[@fathisaed8789]

IT'S GOOD VIDEO

[@ioiooiioioioioooiiioiio2492]

ahcha... thanks

[@eminus6677]

✌️✌️✌️✌️👍👍👍

[@Pinkyou647]

audio, not clear

[@floofsterganggang6356]

Hi sir, is there any way that you have a flashcards or quizzes regarding this lesson? Very informative. Also it's good to have some strong sense of knowledge by answering questions. Thank you.

[@dubbingbrothers2298]

I think u r practicing ur self..i couldn't able to understand what is going on

[@shivangi.dubey19]

WE WANT ABHIJEET SIR BACK! IMS TEAM HAS LIED TO THEIR STUDENTS THAT HE’S BEEN SICK, ALL SUCH RUMOURS ARE NOTHING BUT “ BOGUS” BRING HIM BACK! WE DEMAND A REFUND!

[@YashRaj-cj9ky]

Not able to understand single things...you are not explaining things just reading for yourself.