The following information applies to U-verse service consisting of a single phone line and ADSL (Asymmetric Digital Subscriber Line), using an NVG589 Modem.
The RJ-11 telephone outlets in the home provide access to two UTP (Unshielded Twisted Pair) cables: red/green and black/yellow.
The black/yellow UTP carries the incoming U-verse signal.
The red/green UTP provides telephone service to the home phones.
The modem accepts the incoming U-verse signal and processes it to supply analog voice signal to the phones and Ethernet ADSL to the computers.