The Cisco Small Form-Factor Pluggable (SFP) Ethernet-to-T3 Remote Bridge forwards Gigabit Ethernet packets to a WAN based on time-division multiplexing (TDM) at full-duplex T3 wire speed, fully using the expensive T3 TDM bandwidth to take advantage of existing DS3 linkage to provide an end-to-end Radio Access Network (RAN) backhaul solution.