I think, given the difficulty you're having getting people to understand what exactly is the feature that you're missing, undercuts the idea that it's an essential feature which is inexcusable to not support.
Not really. Try doing a search on the issue. It has been complained about for the iPhone's entire existence. The "not understanding" here reflects the sad acceptance of ever-falling design standards. People forget how much something sucks when they habitually incorporate workarounds to its failings day after day, year after year.
Missed-call notifications were a standard feature on cell phones way before the iPhone (the StarTAC, for example). Not to mention answering machines. Even microwave ovens beep periodically if you forget to take the food out.
But if you miss a call on Apple's $1000 handheld Unix computer/phone, it doesn't make a peep. You don't even have the OPTION to make it do so. That's simply dumb.
