In a message of 30 Oct 95 Vadim Maksimenko wrote to me:
 VM>   Sorry for intervention, but what register or command contain
 VM> country-specific information?
[ Snip form an old ZyXEL FAQ]
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-- T.3     What are known country codes?
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--
Country codes customize ZyXEL modems to work better in a particular country. 
A ZyXEL modem operating in the country for which it was approved for use,  
should leave its country code unchanged.
Austria:        233
Australia:      244
Belgium:        248
Czechoslovakia: 246
Denmark:        252
Finland:        240
Germany:        237
Greece:         247
Holland:        253
Hong Kong:      242
Hungary:        229
Japan:          234
Malaysia        241
New Zealand:    243
North America:  255
Norway:         245
Poland:         231
Singapore:      241
South Africa:   254
Sweden:         250
Switzerland:    251
United Kingdom: 249
ZyXEL USA does not confirm nor deny the existence of country codes.  Thus 
they can not confirm if any entry in the above list is correct.  [Note that 
ZyXEL would get into big trouble with the local telecommunications authority 
if people suddenly started to import large numbers of non-approved modems 
into the country.]
If you know of any other country codes, please mail them to Robert Wong 
(wrob@unixg.ubc.ca) for inclusion in a future version of this FAQ.
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-- T.3A    How does one change a country code?
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--
To get the current country code (North America = 255), type:
        AT#H
Write down this country code, in case the new country code does not work 
properly.
Follow these steps to change the line interface to match those used/required 
for operation in various countries.  Type:
        ATS38.1=1
        AT#G123         where 123 is the country code desired.
        AT&W            to save these settings
Probably best to power-cycle the modem at this point.
Again, a ZyXEL modem operating in the country for which it was approved for 
use, should leave its country code unchanged.  Changing the country code in a 
ZyXEL (for use in that specific country) SHOULD theoretically improve its 
operation.  There have been reports to the contrary.  If problems occur from  
using a new country code, reverting to the previous country code might be  
advised.
[Snip end]
*Mvh* /Henrik/ /Dohlmann/
   dohlmann@henrikd.adsp.sub.org ----------------- ADSP.
   henrikd@diku.dk ------------------------------- Internet.
   2:236/25.22 - 39:141/132.22 - 10:1/18.22 ------ FIDO / AMY / HOA.
--- Spot 1.3a #848
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