The following services are not supported by the AT&T Wireless Internet: any calls with a 500, 700, 900, 976 prefix, 0+ collect calls, operator assisted calls, or dial-around calls (e.g., 1010-XXXX).It may not be compatible with your DVR systems and Satellite systems (please check with your service provider). The AT&T Wireless Internet is not compatible with messaging services (including text messaging and multimedia messaging services), and other services including but not limited to home security systems, fax service, medical alert systems, medical monitoring systems, credit card machines, IP/PBX Phone systems, or dial-up Internet service.A corded or cordless standard touchtone phone will be required to make and receive calls, as the AT&T Wireless Internet does not supply power to your home phone. If power is lost, the AT&T Wireless Internet can run on its back-up battery for up to 1 day and 3 hours in standby mode and provide up to 2 hours and 30 minutes of use time.However, you must keep a phone plugged into your wall jack to receive calls on your old service until your transfer completes. During that time, you can make calls immediately on your AT&T Wireless Internet.

If you are transferring a phone number from a prior provider, it may take about 4 days to transfer the number to the AT&T Wireless Internet.Signal strength may vary in different parts of your home. (2) Near an electrical wall outlet. (3) In the general area where you'll be using your home phone, computer or Wi-Fi enabled devices. Your device should be located(1) Where you have a strong cellular signal from a cell tower, typically near a window or outside wall. The AT&T Wireless Internet works exclusively with the AT&T cellular network and DOES NOT use your home phone wall jacks.

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