FeliCa is externally powered, i.e. it does not need a battery to operate. The card uses power supplied from the special FeliCa card reader when the card comes in range. When the data transfer is complete, the reader will stop the supply of power. FeliCa was proposed for ISO/IEC 14443 Type C but was rejected [citation needed].
Support & Contact: 1 800 AT&T Phone Number Look Up. What is the 1-800 number for AT&T? Below is a list of toll free 800 numbers for AT&T. Orders, Customer Care, Billing,Tech Support: 1-800-331-0500 or 611 from your wireless phone. hours: Mon.-Fri. 7 a.m.-10 p.m., Sat.-Sun.
Phone Number: You can call the AT&T headquarters at 1-210-821-4105. This is not the customer service phone number. To reach someone in customer service call 1-800-331-0500 for mobile accounts and 1-800-288-2020 for Uverse products. Email: When you click on the contact page on the corporate side of AT&T headquarters, you are taken to the contact information for the small business department within the company.