The process took 2 months. I interviewed at BT Group (Hatfield, East of England, England) in Nov 2017
Interview
The assessment centre was really relaxed and calming. It consisted of a one on one interview, group exercise (you were given scenarios and had to order them and then present your findings), then about 3 mini one on one tasks.
The overall experience was favourable, I wasn't asked anything particularly 'scary' and I felt pretty good the whole day. They have first year graduates there to calm you as well which is a good touch but they are also watching you at the same time so don't let your guard down with them.
Also if you do get it, they get back to you the next day so great turn around.
Interview questions [1]
Question 1
How would you bring our core values into what you do every day?
A multi-stage process, which resulted in 20 people being called to the final round. This part of the selection process was in-person and took 4 or 5 hours, with multiple tasks to undertake as well as two interviews with different members of staff.
Interview questions [1]
Question 1
Talk to me about a situation, that was difficult, that you faced?
it was a video interview with around five questions with multiple attempts allowed. However, they were each timed to at least around two minutes per question or so. the link was emailed and told us that we had around five days to complete it (i can't remember exactly)
A Video interview where you have to answer a series of questions about why you want to work for BT and a series of difficulties you've previously faced, with a focus on decision making.