ATTWS was Wireless (before Cingular, SBC/ATT)
Unless you are union, or protected under a legal agreement from a previous merger/acquisition, (ex. PacBell), any retirement benefits currently offered can change and most likely will before you reach retirement age. There were some retirement benefits in ATTWS prior to the merger that have been slowly and discreetly taken away. Now, ATTWS retirees have a pension and not a lot more other than some very minor discounts on phone service.
What is offered today, may not be offered at the time of your retirement. And ATT is notorious for surplusing employees before they qualify for retirement benefits. Sadly, it's a formula other companies will most likely follow in the future.
If I were 40 today, I would seek another opportunity. If you are able to earn a higher income with another company, begin your own retirement package with the extra income while building a second pension as well.
Don't count on AT&T to provide the gold watch.