Cingular/ATT issue

i have a friend who has an Nokia model 6085h Type: RM-198 and gave it to her buddy to use, well it has a "G" in the top of the screen and sometimes a line goes through it and can't send text messages, anyone know what this is for and what the fix is?

Some of the best things come in small packages. I’ve been looking at a number of different mobile devices over the past few months. Right now, I’ve got 5 WM PDA Phones, and 2 WM Smartphones. The PDA phones are mostly locked to specific carriers. I’ve got an HP 6945 and ETEN M700 that are both unlocked, Quad Band GSM phones that support EDGE. I’ve got a Siemens SX66 (Cingular/ATT) and Palm Treo 700wx (Sprint). I’ve got an Audiovox SMT5600 (Cingular/ATT) and Cingular 3125 that are both Smartphones. However, one of the newest additions to my PDA corral is Palm’s Treo 750, locked to the Cingular/ATT network.

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Blackberry based tracking system

GPS weather tracking