At my work environment, announcing my name and company ensure that the caller knows who was reached. There have been countless times where a caller will hear, "Hi, this is [Bob] with [XYZ company]; how can I help you?" only to hear the caller say, "Is this Bob?" or, "Can I spek to Bob?"

These mental midgets are the same ones who leave a message for someone else - or for a different company - even after you identify yourself and your company in the pre-voicemail message.

C'mon, folks! LTTFM! (Listen to the flippin' message!) Engage the brain and THEN the mouth.