Following dialogue (110 being the emergency-phone-no of the police in Germany --> 911 for Americans):
Me: "So, that's the Software when i call 110, then you can see where i am, see my phone-no, and the software already starts calculating the best/fastest path to my position?"
He: "Yep!"
Me: "And if i activate 'Don't send location', or if i activate 'suppress phone-no'?"
He just smiled at me, and shook his head: "eh eh.... You can do whatever you want on your smartphone, they know...... We know the protocols...."
Of course that is no problem. If you have an interface to the mobile network providers you can get the cell ID a phone is booked in (and also those close by). Thus you can a rather good estimate of the location.
And the suppression of the number also happens on the side of the network, not your phone.
PD, of course it's not a problem if you have access to the Interface.
I wanted to point out "perceived" vs. "real" privacy of the "Standard"-User
I remember being on a business-trip to China (Shanghai), where i was booked into a first-class hotel (paid by the company).
Color me surprised when i saw a sign above the reception-desk: "We accept WeChat-Payment" (followed by a phone-number) --> For those who don't know: WeChat is a messenger like WhatsApp, but with a lot more functions (digital wallet and what not)
I asked my boss if they are for real, since i am/we are pretty sure that chinese government is reading along with whatever you say/do in WeChat (Backdoor!)
His answer: "So what? As long as you don't make a donation to "Free Tibet" what can happen to you?"
I agree with Mark regarding backdoors, that as long as it is used for the proper purpose and under correct supervision and jurisdiction, the "Standard"-user shouldn't have a problem with it.
Currently, there is another discussion here on the forum i'm of two minds about it: Allowing/installing a Sub-Forum for arab speaking/writing Users.
I won't take odds on bets, if we allow/install that, that we wouldn't get flagged by american government to keep an eye on us.... (and i know that this is a provocative statement from me!)
EDIT: If i remember correctly (and correct me if i'm wrong!): there was some boolahoo some 20-25 years ago, when Microsoft offered the US-Government a discount for Windows for the US to use Windows on their computers. The Government declined as long as MS didn't provide the source-code for Windows.
From a Government's POV it makes sense to not install/use anything they don't have full control of, on the other hand, if they did get the source-code (as sloppy as it is), they also did get the knowledge where the loopholes/backdoors were/are