The 3G4G Blog

Ralf Kreher explained EPS Fallback mechanism in his post earlier, which is still quite popular. This post contains couple of videos that al...

You have probably heard me a complaining about the pace of VoLTE rollout, 2G/3G shutdowns, 4G Voice roaming, etc. This post highlights all t...

eCall (an abbreviation of "emergency call") is an initiative by the European Union , intended to bring rapid assistance to motoris...

I looked at IMS briefly in my LTE voice tutorial here . The Nokia Lectures covered IMS in-depth in part 5 of the video. I recently came acr...

Nokia recently delivered some lectures virtually to Bangalore University students. The talks covered a variety of talks from LTE to 5G, Secu...

I recently did a 4G voice presentation for beginners after realizing that even though so many years have passed after VoLTE was launched...

VoLTE has been a very popular topic on this blog. My overview of the LTE Voice Summit missed out narrowly from the Top 10 posts of 2014...

This one is from the LTE World Summit 2014. Even though I was not there for this, I think this has some useful information about the 4G/L...

Its been a while since I last blogged about WebRTC. Things have been progressing as rather fast pace in this area. WebRTC capabilities...

Voice over LTE or VoLTE has many problems to solve. One of the issues that did not have a clear solution initially was Roaming. iBasis h...

Single Radio Voice Call Continuity (SRVCC) has been quietly evolving with the different 3GPP releases. Here is a quick summary of these...

Here is the 3GPP presentation from the 9th ETSI Security workshop . Quite a few bits on IMS and IMS Services and also good to see new Au...

Presentation by Oracle in the LTE Asia Summit 2013 Agile IMS for the All-IP Era from Zahid Ghadialy

For more details, you can read Alan Quayle's summary on his blog here .

This simple video from MWC should give an idea on what WebRTC is and can do: So what exactly WebRTC is in technical terms. Here is a r...

Couple of old but interesting whitepapers from Spirent available, in case you are interesting in IMS. Available to download from here...

Present and future Standards for mobile internet and smart phone information security from Zahid Ghadialy Other related ...

MetroPCS has recently launched rolled out VoLTE in USA using LG connect phones. More operators would be rolling it out soon so here is exa...

Another brilliant presentation from the LTE World Summit early this year Day 1-t4 roland-schott-20120523 from ceobroadband