A method of communicating presence information, comprising: • receiving at a controller node (108, 608) a location identification indication from a mobile device (102, 602, 612, 622), wherein the location identification indication is based on a location identifier received at the mobile device from a broadcast node (104, 604, 614, 624); wherein the mobile device receives the location identifier when the mobile device is located within a broadcast area of the broadcast node, wherein a conference device is located within the broadcast area of the broadcast node, • determining a conference status criteria of the mobile device at the controller node, wherein the conference status criteria is based on the location identification indication and a device identifier associated with the mobile device; and wherein determining that the conference status criteria of the mobile device is met comprises: o determining that the mobile device is at a location within the broadcast area of the broadcasting node. o determining that a conference is established using the conference device; and ∘ determining that the mobile device is associated with an invited participant of the conference based on the device identifier associated with the mobile device, • instructing a presence node (110, 610) to update a presence indication associated with the mobile device when the mobile device meets the conference status criteria, wherein the presence indication represents the presence of the user at the conference. • receiving at a controller node (108, 608) a location identification indication from a mobile device (102, 602, 612, 622), wherein the location identification indication is based on a location identifier received at the mobile device from a broadcast node (104, 604, 614, 624); wherein the mobile device receives the location identifier when the mobile device is located within a broadcast area of the broadcast node, wherein a conference device is located within the broadcast area of the broadcast node, • determining a conference status criteria of the mobile device at the controller node, wherein the conference status criteria is based on the location identification indication and a device identifier associated with the mobile device; and wherein determining that the conference status criteria of the mobile device is met comprises: o determining that the mobile device is at a location within the broadcast area of the broadcasting node. o determining that a conference is established using the conference device; and ∘ determining that the mobile device is associated with an invited participant of the conference based on the device identifier associated with the mobile device, o determining that the mobile device is at a location within the broadcast area of the broadcasting node. o determining that a conference is established using the conference device; and ∘ determining that the mobile device is associated with an invited participant of the conference based on the device identifier associated with the mobile device, • instructing a presence node (110, 610) to update a presence indication associated with the mobile device when the mobile device meets the conference status criteria, wherein the presence indication represents the presence of the user at the conference.