you can't any more, devices can no longer see the differnce between tmobile mast and orange masts
That doesnot appear to be true.
Fiddling with the Ev..Ev.. software dongle settings I was able to select T-Mobile as the network, and in deed for same days I was getting 3G+ T-M connection.
Last night, it reverted to Orange
, so I may have to do that again.
Then see if that could be done using a router (no EE software).