Johnaudi wroteNot possible, your phone is only reading from your carrier’s limited bandwidth and decoding it into sound. Sound is not getting processed somewhere where it has write privileges to your hard memory beside your memory registers and a few harmless variables.
Usually those phone calls make money when you call them back at outrageous minute fees.
Please note that calls/messages may induce a bug on the phone, such as crashing it due to reading a certain character or a certain number of characters. Or they may have a message where it includes a download link to a RAT, which will allow the hacker to take full control of your system. (Android only for this last bit, or jailbroken iPhone)
If you are solely a receiver, you are safe, as long as you don’t send a message back/call back so you don’t lose your minutes/dollars.
I’m still looking for this Nigerian Prince. :)
Thank you for your response, when you say may induce a bug on the phone, doesn't that mean that a form of malware has been introduced (regardless if Android or jail broken iphone)?
Also hypothetically, to add to your last part, if an Iphone holder would have called back, can he lose more than just his minutes/dollars?