Guide du micropaiement (SMS+, Audiotel, Minitel, Wap) :
Type de fichier:PDF - Télécharger un logiciel de lecture PDF
... Si l'on souhaite disposer des numéros de téléphone en clair des usagers aux ... Audiotel, l'authentification n'est possible que si le numéro MSISDN de. l'appelant n'est pas masqué ...
www.web-epayment.fr/PDF/Guide du micropaiement par SMS v2.p...

See:

short codes are personal
Short code messaging is also very personal, meaning marketers can easily track who is participating in their programs. When consumers opt-in to a campaign, marketers are able to capture information about the user. This information is captured when consumers send messages from their mobile handset or when they complete and post a form on the Internet (websites) or mobile Internet (WAP sites). They can capture the consumer’s MSISDN (a.k.a. the mobile phone number), their mobile operator, and with mobile initiatives integrating mobile Internet sites (WAP) or


http://www.multimediams.com/glossary.php#M



MSISDN Mobile Station ISDN Number. A mobile phone number.

ISDN Integrated Services Digital Network. Digital PSTN utilising SS7 interfaces, especially the end user services at Basic Rate (2B+D) and Primary Rate (31B+D in Europe). User data on 64k bits per second B channels, signaling on D channels.


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Note added at 25 mins (2006-09-03 13:54:17 GMT)
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Sorry, I thought if you understood MSISDN in full, you would then understand the meaning of "clear". That was my thinking anyway! I wasn't insulting your ability to do searches yourself!!

Have a good day!