Confessions of a Caller ID spoofer

The major telecom equipment maker whose employ A.G. Bell had recently left owed him thousands in unpaid commissions, he says, yet the HR department stopped returning his calls, instead "hiding behind voicemail." Spoofing the HR director's number got his underlings to pick up the phone, at least until they wised to that ploy, at which point Bell - a fictitious name I'm affording him to protect his current job at another telecom vendor - started spoofing numbers right on up to the top of the org chart...