You have a small business customer who wants to use a voice

You have a small business customer who wants to use a voice over IP (VoIP) system and subscribe to this service through his ISP using DSL. What special piece of equipment will need to be installed to provide analog-to-digital signal conversion between the phones and the digital network?

A. A cable modem

B. A DSL modem

C. An Integrated access device (IAD)

D. A multimedia terminal adapter (MTA)

Solution

C. An integrated access device, or IAD, is a device installed on the customer’s premises to provide analog devices access to digital networks, such as the Internet.