AT&T gets into a legal spat with California over legacy phone network maintenance rules

▤ Summary

AT&T is suing California over rules that require it to keep maintaining copper landlines as a Carrier of Last Resort. The company says the legacy network costs about $1 billion a year to support while serving only a small share of households. It wants to retire copper service, shift more customers to IP-based offerings, and use wireless in places where it believes that is sufficient. California argues that reliability and service obligations still matter, especially in areas where landlines remain important during outages and emergencies.

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