The 3G4G Blog

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...

Last year's summary of the LTE voice summit was very much appreciated so I have created one this year too. The status of VoLTE can...

Back in December last year, there was a flurry of news about SS7 security flaw that allowed hackers to snoop on an unsuspecting users call...

Some more interesting presentations from the Signalling Focus Day of LTE World Summit. Good overview of market by Greg Collins of Exact ven...

A very interesting presentation from Raphaël Glatt of Bics in the Signalling Focus Day of LTE World Summit 2014. IPX is probably the mos...

Quick recap of the Bearer Architecture: Remember the interface between S-GW and P-GW is known as S5/S8. S5 in case the S-GW and P-GW are...

Last year, I blogged about Signalling storm and Diamater here and here . Embedded below is a similar sort of presentation from the Fokus F...

The Signalling Storm is coming, its not the question of 'if' but when. This was the unanimous message from the Signaling Focus D...

The IP eXchange ( IPX ) is used for data when the users roam between different networks. GPRS Roaming eXchange ( GRX ) is a service withi...

I got a chance to attend the 'Handling the Surge in Signalling Traffic Focus day' at the LTE World Summit . In fact I got this...