Today I finally got access to an EPT Homeserver, which actually is a Fritz!Box 7570 VDSL, with a few features missing compared with a Fritz!Box 7270. Some of the missing features are Remote Administration and DynDNS support. But amazingly the EPT Homeserver supports the VoIP service by voipGATE. The VoIP and telephony features are essentially the same as those of the 7270, e.g. 2 analog phone ports (called FON1 and FON2), an internal ISDN interface, DECT and WLAN 802.11n support.

Firmware update available from EPT: http://supportvente.pt.lu/luxdsl/avm/FRITZ!Box 7570/firmware/75.04.78/