Why am I not in full control as a cellular user?
kumarfeels.wordpress.com
kumarfeels.wordpress.com
Technologically speaking, implementing something like this is pretty simple.But it will cost the provider money rather than make money - which makes this investment pointless (No company will invest money to loose even more....).
I currently own a N900 and i have an app to block calls (currently blacklist only) i think - though i am not familiar with the N900 incoming call API - it should be rather simple to implement a whitelist instead.
And i pretty sure the same goes for SMS etc...
But frankly i don't really want that kind of blocking, i would prefer blocking numbers of known spammers (which i have a list of) while occasionally letting one pass through the filter, rather than miss even one important call which could change my life (And it happens every day doesn't it?)
This clone would only use the existing notification framework if the sender is in my address book.
Then I would just disable the built-in SMS application.
Of course this isn't as good as blocking the SMS on the provider level, but on the other hand it provides more granularity than a wholesale SMS block would provide.
If the number is blocked - a truly unknown number - send them to voicemail. Most marketers won't leave a voicemail - they'll just hang up.
I voicemail-screen every call I get from numbers that aren't in my address book. 99/100 times, blocked number calls don't even leave a voicemail.
Also about these emergency situations, can you think of the number of times, you actually received these kind of calls? In last 8 years, I can't think of any. And let's say, even if there were couple of them, I think it is unreasonable to consider that 0.001% probability. In that case, you already have enough from the above 5 points to worry about.
Thinking further voicebot to filter out call spam also would be nice. ;-)
I put this issue into Android some time ago. Google's probably in a position to make some change here, and carriers should be ramping up to deal with mobile spam.
The poster will want to chat with the regulatory entities that have oversight of the SMS provider and over consumers. Given the reference to the (US?) DNC, that discussion would involve the US FCC, as well as the state-level commissions.