What are the TCP and APN settings for T-Mobile device?
Find these under Options, Advanced Options, TCP. Make sure this is entered into the WAP address: • The T-Mobile APN is: wap.voicestream.com • Leave the User Name and Password blank. • Be sure to save this before you exit the screen. Note: You may need to enter your T-Mobile username and password, the same information used for logging into www.t-mobile.com/bwc. If it still does not work properly, just call T-Mobile and ask them to get the wap.voicestream.com Internet Access Point Name added to your Blackberry account at no charge.