15 Aug
2017
15 Aug
'17
3 p.m.
Hi,
You are mislead by the name "silent call". In reality this does not make the phone transmit voice data, just a strong, high powered radio signal that could be used to locate the device/user by using it as a tracking beacon.
It is possible to send a command to an MS connected to openBSC afaik that activates this feature.
Cheers,
Domi
2017. aug. 15. dátummal, 14:04 időpontban samir samir.s.abed@gmail.com írta:
Hi,
I have read that silent-calls in GSM can be used to make a call to a target MS and listen to it without having the target knowing it. Is this theoretically possible ? If yes, can it be done in OpenBSC ?