I'm not sure is the right forum to ask that question, but i'm sure makers has a well mind for this type of question

I have to discover for mobile devices around a room, i don't care from permissions of the user my only use is to get list of devices with such of unique ID

I also has some theoretic experience with mobile cells and networks. so, solutions which include this sort of technologies will also help me



You need to specify a bit more information, because mobile devices use many different forms of radio communication that are detectable to varying degrees, with some legal implications in some countries.

I'm familiar only with 802.11 wireless, and have little experience with 802.15.1/Bluetooth and no experience with the multitude of cellular data protocols.

You'll have to specify if you are intending the detect devices passively and silently (without users knowing) or if you are trying to detect devices trying to be detected by you to initiate communication.

Assuming the first, and that you'll be using 802.11 based detection, have a look at the aircrack-ng suite of tools. Specifically you'll likely be interested in airodump-ng. You'll be able to quickly detect all devices communicating over wifi within range and their reported MAC addresses (when not spoofed, are intended to be unique to the device).

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