Property me the Speedport W 724V bought a few weeks ago and realized that it is incompatible with a variety of DECT phones. In addition, however, a Telekom informed only when we ask explicitly for it. For example I have a Philips M8881B and a Gigaset A630. While telephoning works!, Albeit sporadically accounts with many failures, but call lists and options. An absolute disgrace. Apparently, Telekom has made the router only compatible with their own speed phones, at least to me, the technician said.