palmOne Treo 650 Using Instructions page 41

You can monitor the status of several items using icons at the top of the Phone
screen:
Network name Displays Verizon Wireless when your phone is on and you are in a
coverage area. If you are outside a Verizon Wireless coverage area,
No Service, Extended Network, or Roaming appears instead. No
Service means that there is no coverage at all and Roaming means
that another wireless service provider's network is available. When
you turn off your phone, Phone Off appears.
Appears when you are outside a Verizon Wireless coverage area and
roaming on another wireless service provider's network. This icon
may flash if the provider is not on the Verizon Wireless preferred
roaming list.
Wireless mode is on but your phone is not connected to any data
network. The bars display the signal strength. The stronger the
signal, the more bars appear. If you are outside a coverage area, no
bars appear.
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.
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).
Appears when you have new voicemail messages. You can select
this icon to retrieve your messages.
Flashes in the upper left corner when you have a new message,
such as a Calendar Alert or a SMS message. Select the icon to view
the message.
If you have multiple alerts,
the Alert screen displays all
your pending alerts. Select
an item's description to
jump to that item, or check
the box to clear that item.
To view all your pending
alerts from any screen on
your phone, press and
hold Center.
Phone overview :: 39