Users are enabled to re-join a conference after an intentional or unintentional disconnect based on detecting the user's identifier. An identifier associated with a user such as a caller id number is determined or a cookie installed in the user's computing device facilitating communications when the user first joins a conference. If the user's connection to the conference is severed intentionally or unintentionally, and the user attempts to connect again, the system may prompt the user whether they want to join the same conference or another conference. If the user confirms their desire to join the same conference, the system may connect them without the user having to enter conference identifier, password, or similar information.