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AT&T offers a wide range of services for both personal and business needs. Personal services include wireless plans, internet, and data services, as well as media and entertainment through IP-based and satellite television. For businesses, AT&T provides technology solutions such as cloud-based unified communications, POTS replacement, business voice services, IP toll-free service, business SIP trunking, cloud voice solutions, IoT solutions, cybersecurity services, and consulting services.

The company has the second-best network coverage in the United States and they even offer roaming services to ensure that you are always connected. Their 5G infrastructure has been lauded for being reliable, offering low latency and faster speeds. In areas where 5G isn't available, customers can still utilize the 4G LTE network which has a wider coverage.

For technical issues, such as internet connectivity problems, you can contact AT&T by phone or live chat. They also have a community forum where you can ask questions and get answers from other customers.