
Three's botched switch-off
How does Three no longer utilising the Orange 2G network have anything to do with increased UMTS bars on your phone?
Those transmitters which many Three customers have relied upon for service, and have now been cut, are not all of a sudden being re-fitted with UMTS systems for use by Three's customers. They don't belong to Three, and they are on a completely different frequency band.
They might eventually be fitted with 2G/3G/4G multi-standard systems, and they might one day be accessible to Three's customers through a 3G network sharing arrangement, but right now, it is bad news for many customers who find the ability to make and receive calls very important.
How many... who knows? I don't expect Three will lose many customers in London, I would expect they are haemorrhaging customers in small towns and villages where 3g coverage isn't so good.