WilTel Communications (formerly known as Williams Communications, which was formerly part of The Williams Companies, Inc) is a telco and Tier 1 Internet Service Provider with its own MPLS-enabled OC-192 optical wave division multiplexing backbone network. Its other products and services include IP VPNs, Private Line services (protected and unprotected), colocation, Ethernet-based wide area networking, Asynchronous Transfer Mode and Frame Relay network servies.

WilTel also provides broadcast video distribution services including High Definition television distribution.

WilTel Communications also offers a wide range of professional services.

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