In reply to a post by wolvesmad:

Could possibly be the case. I've noticed on EE it tends to switch back to 2G straight from 4G when making phone calls. Probably to ease capacity on 3G.

Generally enough capacity on the 3G stack, you can switch down to 2G from 4G when making / rcv a call but that should be on the odd time not every time.

Happy for you to PM me a postcode if yo want me to take a look as the shape of the network in the area?

I think it could also be due to the 3G signal being so weak compared to 2G and 4G.

Pretty sure it comes from a different site, an ex T-Mobile site a fair distance away.

Just to resurrect this thread..

Isn't Three about to also get the rest of the spectrum that they bought from EE back in 2012? They got some of that spectrum in Sept 2013, but are due to get the rest of it in Sept this year?

http://www.theregister.co.uk/2012/08/22/three_ee_spe...

Would that affect/increase their rollout more?