AT&T marks 150 years since the first telephone call with interactive Dallas exhibit
Tuesday marks 150 years since Alexander Graham Bell made the world’s first telephone call, a breakthrough that launched generations of innovation through Bell Labs and eventually AT&T. To celebrate the milestone, AT&T is hosting a free three‑day interactive museum experience at the AT&T Discovery District in Dallas, open daily from 10 a.m. to 7 p.m.