MNC/MCC as string?

Denis Kenzior denkenz at gmail.com
Thu Jun 11 07:32:38 PDT 2009


Hi Marcel,

> I wasn't aware of this and so it might be better to just expose these as
> an operator id string. So we might not even split into MCC/MNC at all
> since it is meaning less anyway.

I'm tending to agree, which is why I wanted to start the conversation.  

By the way, just so that we're all clear, here's the relevant quote from the 
standard:

"
MCC, Mobile country code (octet 2 and 3) 
The MCC field is coded as in ITU-T Rec. E212, Annex A. 

MNC, Mobile network code (octet 3 bits 5 to 8, octet 4)  
The coding of this field is the responsibility of each administration but BCD 
coding shall be used. The MNC shall consist of 2 or 3 digits. For PCS 1900 for 
NA, Federal regulation mandates that a 3-digit MNC shall be used. However a 
network operator may decide to use only two digits in the MNC in the LAI over 
the radio interface. In this case, bits 5 to 8 of octet 3 shall be coded as 
"1111". Mobile equipment shall accept LAI coded in such a way.
"

>
> That said, we do want some exposure of these values since it is an easy
> way to determine geo location help and switch timezones etc. However I
> am now thinking that me might just add a Country property and do the
> proper translation inside oFono. Since we mostly care about these ones
> most.
>

About the only thing that MCC/MNC is useful for is to display it during manual 
operator selection.  MCC/MNC is not helpful at all for countries like U.S. 
with 4+ timezones and the same carrier id across all of them.  A country 
property would work just as well for this.  What standard do we want to use 
here? ITU 212? ISO 3166? or E164?

Any objections from actually removing the MCC/MNC Properties?

Regards,
-Denis


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