This solution is one of our standard products already running successfully in Germany and Great Britain.
Our product includes personal welcome messages (including an online operator tool to verify and block certain messages), an outdial component, switch your homephone on- or offline to accept calls, browsing through profiles, search users by gender, age or zip-code...
This system can be easily customized - including audio branding (international voices available). All this is hosted on our own IVR platform with a few hundred lines in a carrier grade environment.