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Blackberry coverage

Posted on 2009-03-29
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Last Modified: 2013-12-09

 Hi All

Quick query -I had a user who was travelling on a train this morning and said her Blackberry device wasn't receiving any email, however she was able to send text messages and make phonecalls on it. The Battery on the device was fine.


Is there any explanation to this? Does the data use a seperate 'network' than the phone/sms?

Also - she says that she was able to connect her laptop to the WiFI on the train?

Out of interest, does Blackberry coverage work differently to ActiveSync enabled on a mobile device for corporate email?

Any ideas?
 
 
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Question by:kam_uk
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Gary Cutri earned 2000 total points
ID: 24012547
Hi, the device just had GSM coverage and it was unable to connect to the data network (e.g. GPRS or EDGE). On the standard GSM network it will only allow phone calls and SMS.  In order for a BlackBerry or ActiveSync device to sync email it MUST establish a data connection with the carrier it is connected to (BlackBerry devices then make another connection after that to the RIM relay).  It is common when "roaming" that some other carriers may not offer data services so you may have to go to Options > Mobile Network and manually try a few networks.
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by:kam_uk
ID: 24012724
Hi there

Thanks for answering...

Ok - so, to confirm?;

GSM: Mobile/test only
GPRS: Data services (for both Blackberry AND Activesync)

So it is quite concievable to have an area where there is GSM, but not a strong enough GPRS signal?

Out of interest, she said the train had wireless broadband, what would that use? Either of the above, or something completely different?
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by:Gary Cutri
ID: 24012755
1. GSM = Mobile/text only
2. GPRS = Data services (for both Blackberry AND Active sync). The carrier the user is connecting to must also offer Blackberry services. It is possible the area the user was in had no data or BlackBerry coverage.
3. The wireless broadband service offered on the train would most likely be WiFi (a.k.a. hotspot internet access).  BlackBerry devices with built-in Wi-Fi unit could use this service to connect to the web (i.e. not BlackBerry Services).
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