Systems and methods performed by an IP telephony system allow a user to request that his IP telephony device be set into a conference calling mode for an indefinite period of time. When the user's IP telephony device is in the conference calling mode, all parties that attempt to call the user's IP telephony device are added to a conference bridge tied to the user's IP telephony device. All incoming calls are treated in this fashion until the user cancels the conference calling mode and returns to a normal calling mode.