Even at Mobile World Congress, the relevance of the mobile network operator can sometimes be forgotten. So for a different perspective on this year's event, we spoke to Samuel Johnston from British mobile crowd-sourcing firm OpenSignal.

Samuel discussed the announcements from MWC14 and OpenSignal's latest report into 4G LTE coverage around the world, as well as giving us an exclusive insight into OpenSignal's next research subject.

Ring-back tones offers consumers yet another way to customise their mobile phone service. Yet despite this - and the revenue opportunities that can be generated - many network operators don't provide ring-back tones.

In today's special feature we talk to Florent Stroppa of OnMobile to discover why the UK doesn't really seem to be bothered about ring-back tones... and whether the next-generation of interactive ring-back services could change this.

We start this week's podcast by talking about the launch of BlackBerry 10 before moving on to discuss a 4G promise from Three UK.

The numerical theme continues with the Microsoft 4Afrika project, a handful of quarterly results and some investment news. Plus there’s worrying new malware and a curious Apple trademark application.

Nokia reveals its first two Windows Phone 8 smartphones in this week's podcast, while Amazon announces a handful of new tablets.

And if that wasn't enough, there's an update from Everything Everywhere about its plans for 4G in the UK.

We start this week's edition of The Fonecast with confirmation that 4G coverage will be launched in the UK this year, thanks to Everything Everywhere.

However, all's not well in the world of mobile retail - as mystery shopping by a consumer organisation reports widespread misinformation from sales staff.