| RE: DRM (forward lock) on SMS |  Search
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NowSMS Support Forums ⬆ MMS & SMS Technical Discussions (unsupported) ⬆ Archive through November 12, 2008 ⬆ |
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| Author | Message | |||
| Faiz Uddin New member Username: Faizuddin Post Number: 1 Registered: 08-2008 |
I would like to understand whether it is possible to apply forward lock to a binary picture message (such as QR code/operator logo) delivered over SMS (not MMS) so as to prevent the user from forwarding it to other users? Any help, information or reference material would be most useful and highly appreciated. | |||
| Bryce Norwood - NowSMS Support Board Administrator Username: Bryce Post Number: 7660 Registered: 10-2002 |
There may be some phone specific formats, but nothing that is standardised across manufacturers. I seem to recall a particular MIME type for Nokia phones to indicate the content should be forward locked ... but even so, I guess that is an object downloaded via browser, and you could just as well use OMA forward lock on the object which would work across devices. Note, I'm talking about browser downloads here, not SMS or MMS. So if you're just talking about sending simple images over SMS, I don't believe that either EMS or Nokia Smart Messaging defined a forward lock attribute. EMS did define an Object Distribution Indicator bit that could be set to prohibit forwarding, but that was introduced relatively late in the life span for EMS, so I don't think that was ever widely supported. (You can find reference to this in 3GPP TS 23.040, but I don't think it's of any real practial use.) Bottom line ... I don't think there's any capability that you can count on for this. -bn | |||
