SOA services afford a uniform and transparent use of different devices with similar functionalities. In the last years a number of, mostly incompatible, SOA technologies have been established. Therefore, this advantage is no longer true. Indeed it is not required to support the specific device, but the concrete SOA technology. Furthermore, a transparent service discovery is prevented by device interconnections because many SOA technologies use IP multicasts for a service discovery. The discovery range is limited on the consumer's subnet as the most routers don't route multicasts.This article describes a service discovery approach, that is independent from concrete SOA technologies and device interconnections. That results in an increase of available services and the service discovery range.