Telecom groups agree to expand tower controller CTIL to build 5G network

UK mobile operator presses ahead with Chinese manufacturer despite recent security concerns

Mobile phone operator tries to appease millions of customers

Users in UK and Japan left without service as O2 and SoftBank networks go down

Spanish telecoms groups now expects revenues to be 2 per cent higher in 2018

Technology uses light as data transmitter and ‘paves way’ for 5G in the UK

Regulators are showing themselves increasingly open to allowing more competition

Executives talk up merger prospects in France while CK Hutchison returns to dealmaking

‘What’s next?’ moment as sector seeks connection with younger customers

Retailer faces backlash as new chief seeks to review contracts with phone groups

Tie-up could challenge US and Chinese giants, but it faces fierce German opposition

Proceeds are long way from £22.5bn 3G windfall for Treasury in 2000

UK watchdog to investigate if networks slow down services in contravention of EU rules

Asset sales in Germany and eastern Europe could trigger wave of secondary deals

Tube trains expected to have reception in tunnels by 2019

New strategy could see it return to its roots as budget internet provider

SIM-only service aimed at data-hungry millennials will be restricted to those aged up to 25

New UK mobile phone service gives discount to customers who do not use all their data