Ofcom has changed the licences of the UK’s ‘big four’ mobile network operators to improve mobile coverage.

EE, O2, Three and Vodafone have all agreed to accept this change.

Here’s an edited transcript of our new monthly podcast, broadcast on 30th January 2015.

[Iain Graham]: Hello, it's Friday 30th January 2015. Welcome to this month's edition of The Fonecast. That’s right, you heard correctly: we’ve temporarily moved to a monthly format. If you’d like to join 51Degrees in sponsoring the podcast and returning us to weekly programmes, please get in touch via our website. Now, on with the show.

We're back with a month of mobile industry news, including takeover talks and takeover rumours. O2 and Three are said to be discussing a merger... but is there any truth in the suggestions that BlackBerry could be up for grabs?

We also discuss Apple's record-breaking quarterly figures, the highlights of CES and the launch of Microsoft Windows 10, as well as saying farewell to the current version of Google Glass.

Telefónica, the parent company of O2, has entered into exclusive talks with Hutchison Whampoa about the potential takeover of O2 UK.

It’s proposed a deal worth £10.25 billion in cash.

Sajid Javid MP, the UK Government Secretary of State for Culture, Media and Sport, has announced what’s described as a “landmark deal” with the ‘big four’ mobile networks to improve coverage.

It follows a three-week consultation period that involved the government proposing mandated ‘national roaming’ as one of the options to improve rural coverage in areas where some networks provided service but others didn’t.