AT&T Phone for Business – Advanced is a cloud-based solution that converts traditional analog landline signals to [[Internet Protocol (IP)]], delivering [[Voice Over IP (VOIP)]] internet connections.  The solution supports basic voice and specialty data lines such as [[Fax Machines|Fax]], alarm lines, elevators, point-of-sale terminals, and more.^[[What is AT&T Phone for Business - Advanced? (att.com)](https://www.business.att.com/products/att-phone-for-business-advanced.html)] It is essentially a cloud-based replacement for [[Plain Old Telephone Service (POTS)]], and acts as a [[Analog Telephone Adapter (ATA)]]. # Support [800.615.0708](tel:8006150708)^[[AT&T Business Customer Service Contacts (att.com)](https://www.business.att.com/support/contact.html)]