2.2.3.3.2 Modem device Port Configurations

Modem devices can be used for dial-up networking. Modem devices that are present on the RRAS server MUST be registered under the following registry key.

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E96D-E325-11CE-BFC1-08002BE10318}.

Under this registry key, for each modem, the modem-specific information MUST be present under its own subkey. The subkey MUST be a monotonically increasing number starting with 0000. For example,

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E96D-E325-11CE-BFC1-08002BE10318}\0005

This key can be the subkey under which modem device information is present. Under this registry key, the value in FriendlyName MUST be defined to specify the friendly name for the specific modem device. This value MUST be of type REG_SZ and MUST be null terminated which comprises the friendly name for the modem device.

The device usage configuration itself MUST be present under the subkey Clients\Ras. For example,

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E96D-E325-11CE-BFC1-08002BE10318}\0005

If this key represents a valid modem device information, the device usage information will be present in the following key.

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E96D-E325-11CE-BFC1-08002BE10318}\0005\Clients\Ras

The registry values, EnableForOutboundRouting, EnableForRas, EnableForRouting, and CalledIDInformation specify the device usage and these values are the same as specified in sections 2.2.3.3.1.3, 2.2.3.3.1.4, 2.2.3.3.1.5, and 2.2.3.3.1.6 respectively.