A method for operating a telephony server in a home network is provided, comprising: receiving a first registration action from a first telephony control point in the home network, the first registration action including an identification of a first user within a first telephony control point; supplying a first authentication identifier to the first telephony control point, wherein the first authentication identifier is bound to both the first telephony control point and the first user; receiving an invoked action granting a telephony action from the first telephony control point, wherein the invoked action includes an authentication identifier; determining if the authentication identifier received in the invoked action matches the authentication identifier bound to the user which the telephony action involves; and executing the telephony action if the authentication information received in the invoked action matches the authentication identifier bound to the user which the telephony action involves.