The following status indicators can display:
1. Signal Strength Indicator
Vertical bars show the strength of the network connection. You cannot make or receive calls when the 0 (no signal) indicator or 0> (no transmit) indicator displays.
2. GPRS Indicator
Shows that your phone is using a
Å= GPRS PDP context active
Ç= GPRS packet data available
26 - Learning to Use Your Phone