James Rosewell writes:

Due to growth in staff numbers my business (51Degrees.mobi) is in the process of moving offices. Coincidentally I'm also moving our home broadband. It’s not been a pleasant experience.

This got me thinking, because a few weeks ago on thefonecast.com we discussed why Ofcom isn’t treating Mobile Termination Rates (MTR) in the same way as fixed-line termination rates. The mobile industry justifies higher MTRs on the assumption that a mobile network costs more to run than a fixed-line network. It was certainly true when the fixed costs of running a mobile network had to be shared across a relatively small number of customers, even if they did pay a fortune for their contracts and terminals. Intuitively I'd say that’s just not true anymore.

In this week's podcast news report we're talking about quarterly results from BlackBerry and Three UK, we're discussing the latest network complaints data from Ofcom and we're contemplating the arrival of a new Facebook phone.

There's also time to discuss EE's UK 4G rollout, a dramatic move from T-Mobile USA and a train ticket app from O2.

We're back from Mobile World Congress 2013 with the latest news for the UK mobile phone industry.

Today's conversation covers new handsets, forthcoming operating systems, apps, mobile payments, VoIP, 4G and Facebook's two-tier internet.

Mark Bridge writes:

We’re back from Mobile World Congress – and what a show it was. Located at a new site that saw more visitors than ever before, the show had everything… except any particularly obvious theme from hardware manufacturers. Last year was the year of the quad-core smartphone, this year there was plenty of incremental innovation but nothing truly startling.

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.