EFM – Ethernet First Mile
EFM is a good choice for those who need a symmetric service (same speed up and down). Speeds range from 5Mbps up to 20Mbps.
Speeds are achieved by bundling several copper DSL services together to achieve the desired speed.

Features
Uses Inexpensive, bonded copper
Cost effective for the speed
Symmetric Speeds available
Speeds from 5Mbps up to 20Mbps