An accounting scandal in Italy and a gloomy earnings outlook add to the growing pressure on BT's boss.
A hard Brexit could equal hard times for UK service providers, and increase the likelihood that Vodafone will move its headquarters outside the UK.
In a no-growth future, service providers will need to focus more keenly on cost savings and efficiency gains.
The forthcoming 5G standard sounds impressive, but it seems unlikely to reinvigorate the telco business.
Pre-5G activity in Asia and the US does not mean Europe will lag on actual 5G rollout, but it points to the ebbing of European influence.
Could the success of 4.5G have a big influence on operators' 5G strategies?
The world's biggest equipment vendor is bracing itself for a more turbulent ride this year.