Abstract: The present invention relates to a method for reducing a flow of soil air to the indoor air in a building (1), wherein the building comprises at least one wall (2), which wall comprises a permeable channel (23) connected with soil air, wherein the method comprises achieving a flow stop (24) for the soil air in the permeable channel (23). The invention also pertains to a device to reduce the flow of soil air to indoor air in a building (1).

Abstract: The present invention relates to a method for reducing a flow of soil air to the indoor air in a building (1), wherein the building comprises at least one wall (2), which wall comprises a permeable channel (23) connected with soil air, wherein the method comprises achieving a flow stop (24) for the soil air in the permeable channel (23). The invention also pertains to a device to reduce the flow of soil air to indoor air in a building (1).

Abstract: Communication devices, such a telephones, are connected to one another so that they are reachable by at least a first identity. Each communication device is programmable to let through only identities that are stored. For example, this could mean that only one of many devices permits the identity to go through. In this way, the contact attempt is selectively permitted to go through to only certain devices in a group of devices that all have at least one common identity. The system may be used for telephoning, IP-communication and other digital signaling security solutions.

Abstract: Method and system for reachability via time controls to a selective register. This is achieved by the fact that the identity of the calling number from other subscribers to the first subscriber, that via time controls are permitted to be forwarded to a register that corresponds to the identity of the number of the caller, and can according to the invention provide selective messages in an unlimited amount to the call and selectively forward subscribers to selective registers. The time control is a first function that the caller is encountering. Via the time control the identity of the caller can lead to ranked registers such as message registers at a first level and thereafter to other selected registers that corresponds to the identity of the caller. As a last function the call may be let through to the first subscriber assuming that the time control is so arranged.