Phone company recordings archive

The Phone Recording Archive sports hundreds of samples of recorded voices from different phone systems around the USA, including a ton of old Bell System clips, such favorites as:

* Invalid Access code
* Not from this calling area
* All circuits are busy
* Can't process custom calling request
* Dial 1 first
* Disconnected number
* Don't dial 0
* Don't dial 1
* Please hang up and try again
* Due to heavy calling...
* Please check the instruction manual
* Call not completed as dialed
* Call did not go through
* Call not completed, please check number or call operator
* Due to telephone company facility trouble...
* Not from the phone you are using

Link

(Thanks, Luke!)