Справочник Пользователя для Nextel comm 7520

You must connect to the wireless network to begin using many 

BlackBerry device features. To connect or disconnect from the wireless 

network, from the Home screen, click Turn Wireless On/Turn Wireless 

Off.
Indicators on the Home screen show the wireless coverage level for the 

area in which you are using your BlackBerry device. A low level of 

wireless coverage might limit the use of some BlackBerry device 
features, as shown in the chart below.

Full wireless coverage

Wireless is turned off

No Wireless coverage

Emergency calls only

Emergency Calls

    x

    x

    x

    x

    x

    x

Receive SMS Messages

    x

    x

    x

    x

    x

Phone

    x

    x

    x

    x

    x

Walkie-Talkie

    x

    x

    x

   x

Email and PIN messages

    x

    x

Browser

    x

    x