palmOne Treo 650 Using Instructions page 165

The smartphone makes or answers calls when it's in a briefcase or
pocket
Items in your briefcase or pocket may be pressing the onscreen Answer button or
otherwise activating screen items. If this happens, be sure to press Power/End
turn off the screen before placing your smartphone in a briefcase or pocket. You may
also want to disable the screen's touch-sensitive feature during incoming calls (see
"Using Auto-Keyguard and touchscreen lockout" on page 143).
I can't tell if data services are available
The following icons indicate data services:
Your phone is in a coverage area where data services are available,
but it does not indicate whether you are connected to a data
network. This icon appears in the Main View of the Phone
application (near the top of the screen).
Wireless Mode is on but your phone is not connected to any data
network.
Your phone is connected to a data network. When the arrows are
gray, you are in standby mode and you can receive calls. When the
arrows are green, a data session is active (for example, when you
are browsing the web) and you cannot receive calls.
The Treo 650 smartphone won't connect to the Internet
Your Treo 650 smartphone supports CDMA wireless data networks. To connect to
the Internet, you must subscribe to and activate data services with Verizon Wireless.
• Contact Verizon Wireless to verify that your subscription plan includes high-speed
data services and that these services have been correctly activated. Verizon
Wireless should also be able to tell you if there are any outages in your location.
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Network connection :: 163