At 15:37 Uhr +0100 27.6.2001, Gus wrote:
>On Tue, 26 Jun 2001, Andreas Fink wrote:
>
>> I'm trying to get a operator logo installed on to a Pac*Belll /
>> Cingular PCS phone (nokia phone). The logo is correctly installed but
>> when saved, it doesnt appear. Sounds like the network/country code is
>> wrong.
>
>Yep.
>
>
>> The one I used is 13F071 which is county code 310 network code 17.
>> But now I realize that my carrier is listing PacBell as network code
>> 170.
Actually www.gsm.org does show it as 310/17 not as my list shows 170.
(see http://www.gsmworld.com/gsminfo/gsminfo.htm). Maybe the last
digit is simply stripped off. But again, voice stream is listed as
310/310. One digit too much again.
Logo Manager, a PC software I use to create the logos does list
PacBell as 310/17
and PacBell Cingular as 310/170. Very confusing...
LogoManager does code 310/17 as:
13 F0 71
and does code 310/170 as:
13 F0 07
and stripping off the first digit of the MNC.
>Sure about that? All MCC codes are 3 digits, and all MNC codes are 2. I'm
>on Vodafone UK (234-15) for example. A full list is at
>http://users.zipworld.com.au/~rmills/MCCandMNCValues.htm
>
>Both fields are packed in the logo itself as two bytes per value by
>representing them like so
>
> logodata[6] = mcc % 256;
> logodata[7] = mcc / 256;
> logodata[8] = mnc % 256;
> logodata[9] = mnc / 256;
Not really, It is coded as a BCD value. So your 234-15 would end up
as 43 F2 51 because they have lower/higher byte ordering. The F is a
filler byte. so in general a MCC-MNC of "abc-xy" ends up in "ba Fc yx"
> > However there is no way to pack 3 digits into a space which only has 2
>> digits. Also Pac*Bell was recently renamed/bought up/taken over (or
>> whatever) by Cingular and I wonder if that has made the network code
>> change.
>
>It's certainly possible, but there would have to be a very good reason for
>it becase the MCC-MNC "allowed networks" in the SIM would have to be
>updated as well.
SIM cards where not changed on all the network but the user who is
trying recently lost his phone and thus has a very new SIM card.
Probably they are running both 17 and 170 in parallel and phase out
the old cards over time.
--
Andreas Fink
Fink-Consulting
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