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In this paper we present lightweight and generic application level gateways for connecting service oriented sensor networks to service oriented standards in the consumer electronics domain. We study the trade-offs between interface richness, deployment granularity and overhead in discovery protocols and we present how the varying interaction patterns on both sides of the gateway can be efficiently mapped onto each other. As a result we obtain three different application-level gateways architectures. The analysis is kept concrete using the Open Service Architecture for Sensors and Universal Plug and Play (UPnP).