Question for those of you for whom I've done a GSM firmware upgrade

[Michael Shiloh]

Excellent info, again. Thanks.

You ask:

 > Is there a way to tell on the Neo which frequency band it's currently
 > using? That might be kind of handy...

I think there is. I'm trying to locate it. I had thought it was an "em" 
command. I'll try to find it tomorrow.

Michael


ian douglas wrote:
> Michael Shiloh wrote:
>> I checked the map, and I'm in the same situation as you: 1900 and 850.
>> But I notice the maps are not maintained by the providers. How do we 
>> know they are up to date?
> 
> http://en.wikipedia.org/wiki/T-Mobile
> "The US T-Mobile network predominately uses the GSM/GPRS 1900 MHz 
> frequency-band"
> (this page also says T-Mobile uses 900/1800 in Europe)
> 
> The key word being 'predominately' of course, but doesn't back it up 
> with what else it does use, otherwise the author should have used the 
> word 'exclusively'. A little more digging found this:
> 
> http://en.wikipedia.org/wiki/T-Mobile_%28USA%29
> "T-Mobile USA has ... roaming arrangements with ... AT&T Mobility ... 
> predominately provided service using the GSM 850 MHz band"
> 
> So by that account, T-Mobile is 850/1900. I clipped out the other 
> carriers partnered with T-Mobile, and other irrelevant bits.
> 
> 
> The wiki page for AT&T Mobility only mentions in passing that it uses 
> 1900 as part of an initial joint communications project with T-Mobile, 
> but says nothing of 850/900/1800, however we can see from the above 
> statement of T-Mobile piggy-backing on AT&T's 850 network that AT&T 
> *must* use 850, which backs up documentation that I've seen that says 
> AT&T *only* uses 850/1900 in North America. There was one post I saw 
> that claimed AT&T used 900 in New York City but couldn't find any 
> additional documentation to back that up.
> 
> 
> The wiki page for GSM usage in North America:
> 
> http://en.wikipedia.org/wiki/GSM_frequency_bands#GSM_frequency_usage_in_the_Americas 
> 
> 
> ... simply points back to gsmworld.com:
> 
> http://www.gsmworld.com/roaming/gsminfo/cou_us.shtml
> 
> Again, where we see AT&T uses 850/1900, and T-Mobile uses 1900.
> 
> 
> Is there a way to tell on the Neo which frequency band it's currently 
> using? That might be kind of handy...
> 
> Ian
> 
> 
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