Actually, it is a top device. But now I had difficulties installing a Siemens Gigaset. Apparently, no Voip phone can be installed on this device. TP-Link support replied to my query (and I quote): "The Archer MR200 does not support VoIP, for this reason the Archer MR200 cannot work with the Gigaset S850 HX or with other phones." I lack imagination that this should not be technically possible. In my opinion, it must work via the corresponding port settings...