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Old 12-22-2009, 08:07 AM   #1 (permalink)
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Default Cell Broadcast Services

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What is Cell Broadcast Services and should I have it on or off?

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From Wikipedia, the free encyclopedia

Cell Broadcast (CB) messaging is a mobile technology feature defined by the ETSI’s GSM committee and is part of the GSM standard. It is also known as Short Message Service - Cell Broadcast (SMS-CB). Cell Broadcast is designed for simultaneous delivery of messages to multiple users in a specified area. Whereas the Short Message Service - Point to Point (SMS-PP) is a one-to-one and one-to-a-few service, Cell Broadcast is a one-to-many geographically focused messaging service. Cell Broadcast messaging is also supported by UMTS, as defined by 3GPP.

Cell Broadcast messaging was technologically demonstrated in Paris for the first time, in 1997. Some mobile operators use Cell Broadcast for communicating the area code of the antenna cell to the mobile user (via channel 050), for nationwide or citywide alerting, weather reports, mass messaging, location based news, etc. Not all operators have the Cell Broadcast messaging function activated in their network yet, and many handsets do not have the capability to support cell broadcast.

Cell Broadcast is a technology that allows a text or binary message to be defined and distributed to all mobile terminals connected to a set of cells. Whereas SMS messages are sent point-to-point, Cell Broadcast messages are sent point-to-area. This means that one Cell Broadcast message can reach a huge number of terminalsa at once. In other words, Cell Broadcast messages are directed to radio cells, rather than to a specific terminal. A Cell Broadcast message is an unconfirmed push service, meaning that the originator of the message does not know who has received the message, allowing for services based on anonymity. Mobile telephone user manuals describe how the user can switch the receiving of Cell Broadcast messages on or off.

Cell Broadcast messaging has a number of features that make it particularly appropriate for emergency purposes:

It is not as affected by traffic load; therefore, it may be usable during a disaster when load spikes tend to crash networks, as the 7 July 2005 London bombings showed. Another example was during the Tsunami catastrophe in Asia. Dialog GSM, an operator in Sri Lanka was able to provide ongoing emergency information to its subscribers, to warn of incoming waves, to give news updates, to direct people to supply and distribution centres, and even to arrange donation collections using Celltick's Cell Broadcast Center, based on Cell Broadcast Technology.
Cell broadcast is widely deployed since year 2008. In Europe, most handsets do have cell broadcast capability, and the major European operators have deployed the technology in their networks.

Cell Broadcast is a mobile technology that allows messages (up to 15 pages of up to 93 characters) to be broadcast to all mobile handsets and similar devices within a designated geographical area. The broadcast range can be varied, from a single cell to the entire network.

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Last edited by johnling : 12-22-2009 at 08:27 AM. Reason: Edit - an Answer.
Old 12-22-2009, 08:30 AM   #2 (permalink)
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Wirelessly posted (8820)

From help app on the device:

Cell broadcasting is designed to enable wireless service providers to use SMS text messaging to send information to all BlackBerry® devices in a specific geographical area simultaneously. You can receive cell broadcast messages that contain a specific type of information by subscribing to a cell broadcast channel that provides that type of information. Different cell broadcast channels send different cell broadcast messages. For example, one cell broadcast channel might send regular weather forecasts while another might send traffic reports.
- Ira
Old 12-22-2009, 09:42 AM   #3 (permalink)
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Thank you for this very interesting info. I've always wondered what it was too.
I suppose it would have to be on all the time to be of any good. Which would mean another app, running in the background???

Last edited by diffused : 12-22-2009 at 09:49 AM.
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