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Just to clarify here, are you saying that in order to properly deploy VoIp within a wireless network every node has to have a router installed to prioritize traffic? Is there an Aironet product that has the ability to give QOS without routers?
according to the FCC regs I believe that the 802.11 device cannot cause unwanted interference, although the closer one gets to the antenna the greater the risk of interference and effect to the human body.