Success with T-Mobile in the UK. Add modem initialization string of +cgdcont=1,"IP","general.t-mobile.uk". Phone number is *99# with username "user" and password "pass". I had to ask T-Mobile (UK) to add general.t-mobile.uk to my account before it worked. Be aware that this data transfer is not part of your Blackberry data allowance, so weighs in at £7.50 per Mb or you can take out a monthly allowance.