A mobile phone is constantly waiting for a signal to come across its radio frequency address. When a call is transmitted to your phone, a unique signal including the initiating device information (telephone number, caller ID etc) instructs your phone to display the information and alert the user of a phone call.
I am 100% sure that the human brain is capable of interpreting mobile phone radio signals, and that mobile phones have trained our brains to receive and interpret cellphone radio signals from being in extremely close proximately to the body while constantly sending and receiving signals. The human brain has a periphery function which recognizes the radio signal burst, and automatically associates and catalogs it with the person that you’re speaking with on the phone after the signal arrives / phone rings.
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