Giny@geenrotzooi_xs4all.nl <G.speelman@geenrotzooi_xs4all.nl> dixit:
>I am puzzled about following problem.

>I live in Amsterdan and my husband is in Japan at the moment using his 
>Japanese keitai as his Dutch Mobile phone does not work in Japan.

>I can phone him, I can send him emails from my computer that he can read as 
>a short message on his Japanese keitai but I can NOT send him SMS.

SMS (Short Message Service) is part of the GSM mobile phone
system. Generally speaking thay are of no relevance outside
GSM networks. (In Australia, if you send an SMS to a fixed-line
phone, you can arrange to have it delivered as a voice call via
a speech synthesizer.)

>I am not sure whether SMS is English, I mean I can not send him short 
>messages from my Dutch mobile to his Japanese keitai.

That is to be expected. The Japanese mobile networks do not interface
to the world's GSM networks at that level. (Potentially they could,
but it would take quite a bit of development work at the interface,
and I guess NTT didn't think it was worth the effort.)

>But from my computer I CAN send him messages that he receives as messages on 
>his Japanese  keitai.

Yes, because the text system used with i-mode, etc. interfaces to email.

>I sent him a few SMS (short messages from my mobile phone) which he does not 
>get but I do not get a message that they could not be delivered!!!!!
>On the contrary, my mobile says: message sent!

That "message sent" message in SMS just means that the message went from 
your phone to the GSM network.  GSM has an optional "message delivered"
service message. Not all GSM operators enable it. Here in Australia
it is not enabled, much to the annoyance of my newly-returned-from-London
daughter, who had come to depend on it.

>I found out that he does not get them because he mailed me from his keitai 
>that he did not hear from me for many days.

>I am flabbergasted, how is this possible?

It's easy. GSM was developed in Europe and surprised many by being
adopted almost all over the world. It's even available in much of the
US, although you have to have multi-band phones because the standard
GSM fequencies were already in use. There are a few non-GSM countries,
of which Japan is the most significant.

>Am I doing something wrong?

No.

>If so, please tell me how I can send SMS from my mobile phone.

You can't.

-- 
Jim Breen        http://www.csse.monash.edu.au/~jwb/
Clayton School of Information Technology,
Monash University, VIC 3800, Australia 
ジム・ブリーン@モナシュ大学