The Verizon model 7250 has a TCP/IP stack, no configuration is needed. Many third party Internet applications work out of the box on it.
However, the 6750 and 7750 does not have a TCP/IP stack, although a future BlackBerryOS may fix this (Version 220.127.116.11 or later may be required). Please verify with Verizon if you can get an OS upgrade. Sometime OS upgrades available from other mobile carriers are compatible, but you need to be careful of course in this case and backup all data before.
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