system
Given the following post, respond as if you're commenting on Reddit:
human
[The Matrix] Tank sends the signal to the hardline to bring Neo back to the real world, only a pizza delivery guy walking by happens to answer this mystery ringing phone

Does Kevin the pizza delivery guy wake up in the real world and die as he hasn't had the red pill so can't be found? Does nothing happen? Does Kevin go into Neos real world body?
gpt
Nothing would happen. Part of the process of a redpill picking up the phone involves the operator listening for the person on the other side, confirming their identity, and then inputting a series of commands to pull them out of the simulation. Between a crew of well trained long-term shipmates, this process can take a second or two, but it's vital to ensure the identity of the operatives and prevent incidents exactly like you described. Or worse, agents interfering. 

The instant Tank hears Kevin say "uhhh, hello?" he'll shut the line down and find another way to contact Neo.