Currently, under bitstream access, communications providers are only given limited control over the services they offer. In order to prevent customers being accidently or maliciously reconfigured by a competitor, each communications provider's circuit is isolated from the other communications providers, and dynamic line management profile choice is maintained by the network operator. The present invention proposes allowing greater access to communications providers to configure physical layer configuration parameters associated with a line, through the use of an adaptation gateway. The adaptation gateway is used to manage configuration requests to digital subscriber lines from the communications providers. The adaptation gateway allows configuration of certain DSL line, channel or data path parameters (such as those listed in ITU-T Recommendation G.997.1), but prevents modification to any of those parameters that might affect or cause harm to the service of another line.