A communications system, comprising: a mobile communication carrier formed from a third generation, 3G, core network, a Long-Term Evolution, LTE, core network, a 3G femtocell gateway, and a LTE femtocell gateway; and a dual femtocell base station apparatus comprising: a first communication unit configured to communicate with the mobile communication carrier through a first communication session, the first communication session being one of a 3G communication session established with the 3G femtocell gateway and a LTE communication session established with the LTE femtocell gateway, a second communication unit configured to communicate with the mobile communication carrier through a second communication session, the second communication session being the other one of said 3G communication session established with the 3G femtocell gateway and said LTE communication session established with the LTE femtocell gateway, and a communication control unit configured to control the first communication unit and the second communication unit, wherein the communication control unit is further configured to disconnect the first communication session and command the first communication unit to send a signal intended for the first communication session to the second communication unit, and wherein the second communication unit is further configured to encapsulate the signal into a form for transmission over said second communication session, and to transmit the encapsulated signal over said second communication session. a mobile communication carrier formed from a third generation, 3G, core network, a Long-Term Evolution, LTE, core network, a 3G femtocell gateway, and a LTE femtocell gateway; and a dual femtocell base station apparatus comprising: a first communication unit configured to communicate with the mobile communication carrier through a first communication session, the first communication session being one of a 3G communication session established with the 3G femtocell gateway and a LTE communication session established with the LTE femtocell gateway, a second communication unit configured to communicate with the mobile communication carrier through a second communication session, the second communication session being the other one of said 3G communication session established with the 3G femtocell gateway and said LTE communication session established with the LTE femtocell gateway, and a communication control unit configured to control the first communication unit and the second communication unit, wherein the communication control unit is further configured to disconnect the first communication session and command the first communication unit to send a signal intended for the first communication session to the second communication unit, and wherein the second communication unit is further configured to encapsulate the signal into a form for transmission over said second communication session, and to transmit the encapsulated signal over said second communication session. a first communication unit configured to communicate with the mobile communication carrier through a first communication session, the first communication session being one of a 3G communication session established with the 3G femtocell gateway and a LTE communication session established with the LTE femtocell gateway, a second communication unit configured to communicate with the mobile communication carrier through a second communication session, the second communication session being the other one of said 3G communication session established with the 3G femtocell gateway and said LTE communication session established with the LTE femtocell gateway, and a communication control unit configured to control the first communication unit and the second communication unit, wherein the communication control unit is further configured to disconnect the first communication session and command the first communication unit to send a signal intended for the first communication session to the second communication unit, and wherein the second communication unit is further configured to encapsulate the signal into a form for transmission over said second communication session, and to transmit the encapsulated signal over said second communication session.