The box bears one sticker "Compatible Broadband", but with the ringing of the Freebox V5 Temporis 10 can not be activated (one short beep) when a Dect Gigaset is connected in parallel. If the Temporis 10 is connected only produces one ring 3 seconds. As against a wall phone unbranded dating 20 years working normally. Although this problem seems recurring with Freebox, it would be desirable that Alcatel makes testing and development before displaying a Broadband compatibility. I keep it anyway considering the price and the cost of returning.