A federal judge denied AT&T’s bid to block California’s Carrier of Last Resort (COLR) rules—meaning AT&T must keep offering “basic” phone service in the state while the case continues. AT&T says it spends $1B/year maintaining an aging copper network; California says the rules are tech-neutral and AT&T can meet obligations via fiber, wireless, or VoIP. Dealers should prepare for home phone migrations ahead of June 1, 2027.