Page "Asynchronous Transfer Mode" Paragraph 15

At these lower speeds, ATM provides a useful ability to carry multiple logical circuits on a single physical or virtual medium, although other techniques exist, such as Multi-link PPP and Ethernet VLANs, which are optional in VDSL implementations.

DSL can be used as an access method for an ATM network, allowing a DSL termination point in a telephone central office to connect to many internet service providers across a wide-area ATM network.

In the United States, at least, this has allowed DSL providers to provide DSL access to the customers of many internet service providers.

Since one DSL termination point can support multiple ISPs, the economic feasibility of DSL is substantially improved.