Welcome to the year 2000. Honestly, it's best to just get cable and forget about AT&T and their garbage.
Even if you get served, it won't be long until you get some random line issue that knocks everything out that will take weeks to fix. Their excuse will be that the phone works, so you are low priority.
And cable companies are any better? -- Intel Q6600 @3400Mhz/GA-EP35-DS3P/4x 2048Mb G.Skill/WD Raptor 300Gb/3x WD20EADS 2TB/2x PNY GTX 260/Silverstone 850W/Custom water cooler