BenQ Z2 - Manual (Page 91)

Using Your Phone 75
Set Number
Allows you to save your voicemail phone number.
Cell Broadcast
Cell broadcast messages are general messages that your network
operator broadcasts to all phones within a particular area. These
messages are broadcast in numbered channels. For example, channel
030 might be for local weather, 060 for traffic reports, 080 for
information about local hospitals, taxis, etc.
You can receive cell broadcast messages that your network operator
broadcasts, and select your preferred topics and languages.
For more information about available channels and a list of the
information they provide, contact your network operator.
Receive
To activate the cell broadcast feature, set this option to On.
Topics
The topics listed in the Topics list represent the broadcast
information that you have selected to receive from your
network operator.
If you have not previously saved any topics, press
(Option) and then select Add so that you can enter the desired
range of topic numbers (that is, the channel numbers). The
upper and lower limits of the range are the highest and lowest
channel numbers, respectively. You are no longer limited to
selecting only single channels, but can specify a range.