AT&T is a telecommunications leader offering wireless, internet, and fiber services, alongside consumer hardware including Wi-Fi hubs, cordless phones, and charging accessories.
AT&T is a multinational telecommunications holding company recognized globally for its wireless, internet, and digital home phone services. Beyond connectivity solutions like AT&T Fiber and Internet Air, the brand encompasses a distinct range of consumer electronics equipment.
This includes the popular AT&T cordless telephone systems (manufactured under license by Advanced American Telephones), Wi-Fi gateways, signal boosters, and mobile accessories such as Qi wireless chargers. Whether setting up an All-Fi Hub for home internet or configuring a DECT 6.0 cordless phone system, AT&T provides extensive support resources.
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You can register your service by visiting att.com/accountregistration or using the AT&T Smart Home Manager app.
Blinking amber signal LEDs typically indicate errors such as No IP address (E004), SIM error (E400), or authentication failures. Check the Smart Home Manager app for specific troubleshooting details.
Manuals for AT&T cordless telephone systems are available at www.telephones.att.com/manuals.
On many models, if the language was accidentally changed, you can reset it by pressing MENU in idle mode and entering the code 364#.