3. IMS registration call flow - VoLTE Registration call flow - SIP Registration call procedure

Thank you very much, your sharing courses are very helpful for all Core Network Engineers.

Amazing

Excellent

Hello Vikas, great content. Quick Question- If default bearer for QCI 6 or QCI 5 breaks during a call setup(INVITE- 180 ringing), can this result into a call setup failure?

Hi Vikas Great explanations. Thanks

super ! do more videos on 5G

@vikas, so there will be 02 default beareres for LTE, one for internet and other LTE bearer for IMS? or same LTE will bearer can be used for both?

Very useful information

very helpful video . thanks

My Samsung galaxy note 9 says ims not registered
Can I register ims In my phone im from nepal but when I go to India my phone supports VoLTE

sir please define tas update job profile

can we get this PPT?

what's supplementary services?

brilliant work, a brief description of P-CSCF, I-CSCF and S-CSCF would have been more helpful,

thanks vikas

thanks for sharing such brief registration process.

Awesome sir.... line to line explanation

Please state a real time problem a it's solution while ims registration and call flow.

All Good
Ck and Ik ?
IP Sec security is missing in Registration

How Icscf knows that to which SCSF he has to sent Register MESSGE from UAA from 1st Register as it's sent SCSCF Capabilities

Super♥️😇

VERY NICE SIR..... PLEASE MAKE SOME USEFUL VIDEO OER 5G, THANKS IN ADVANCE

fantastic job Vikas on quality ppt and video and simple way to convey the concept

Vikas one doubt. From SAE-GW you said PCO option, tell me something in detail about this. If Multiple PCSCF's like 5 or 6 PCSCF's are there then how PCO will give correct PCSCF IP. What is PCO option where it is available where it is configured and how SAE_GW identify correct PCSCF IP. Please explain...Thanks...

thnks sir

sir no volte activating on my bsnl sim, 4g data working fine even jio volte working fine on putting sim on this handset(asus_x01bda). and my bsnl sim volte working fine on redmi 5 handset what is the problem any help sir?

Vikas, I liked all your videos on IMS VoLTE, they are too good. Great explanations, powerful videos, and crystal clear PPTs. Keep up the great work!

Hello Sir,
how can I contact you?

Excellent👍👍

How to register IMS? Do i have to register with the provider?

Thank you!
You are the bahwan of volte.

Thanks for making useful video

Vikas Sir...Can you please confirm if during SIP reg also AAR-AAA(P-CSCF--PCRF)---RAR-RAA(PCRF---GGSN) message flow occurs or not? Or does it occur while while Volte MO-MT call only during dedicated bearer establishment only?

Good class sir..thank you

Hello,
Can you please guide me how can I enable volte on my Motorola z2 play phone and the carrier provider is airtel... I am unable to use volte on my phone although my phone supports jio volte connection but I'm unable to use the same service on Airtel number.
I further checked my ims status there it shows that ims is not registered and volte is unable... Please guide.

Thanks and regards

I am not sure what has happened .. I have seen your other videos which are quite good specially the ones having NFVi etc .. but these IMS videos are so terrible ..

Pls explain T-ADS release 8 and 9

Is SIP registration done after IMS default bearer is established??

Hi Vikas ,

Thanks for sharing valuable info through this video , Could you please help me to understand below query -
- As we know in SIP Via , to , from , call ID , cseq , max-forward and Contact are mandatory header for successful registration , is any other header which are mandatory in SIP IMS ? like I have seen sip register contains -P-Visited network , P-charging vector and P-charging function in registration message .

- what is path header and why its required when already route header is there with register request ?
-

Very well explained.Thanks.

Great job, very professional, and quality work.

AMAZING JOb, VERY HELPFUL..!!

How can learn Telecom engineering ?Is there any tutorials cover all topics?

Thnks Man very good

Good explanations

why UE always send SIP without authentification first. why does US not send SIP with Authentification in 1st request?

Like crystal clear. Many thanks to Vikas for this tutorial. I enjoyed to see this video!

Thanks for video very good explanation

Thank you for sharing valuable information ...

Very well explained... How to download PPT?