Optical Ring Services Related Resources

See how AT&T Ultravailable Network Service can deliver a converged SONET/DWDM ring solution that will suit your networking needs with options to change your network as your business evolves.

AT&T offers a complete choice of optical ring technologies and converged capabilities, based upon your configuration and requirements, including: SONET (Synchronous Optical Network), Dense Wave Division Multiplexing (DWDM) or Converged SONET/DWDM rings. These services can add more features such as Ethernet, Storage or Monitoring capabilities. AT&T has an extensive nationwide footprint, allowing your locations access to metro-connectivity across the country.

This fast paced video illustrates two common ring protocols: Synchronous Optical Network (SONET) and Dense Wave Division Multiplexing (DWDM).