Method of receiving communications destined for subscribers at a mobile telephone network, wherein the mobile telephone network has a plurality of destination subscribers each having a mobile terminal, the destination subscribers including a first group to which a extra service is to be applied and a second group to which the extra service is not to be applied, the method comprising: receiving a plurality of items of incoming signalling at a switch/STP of the mobile telephone network wherein each item of signalling includes an indication of the destination subscriber which it concerns, and the items of signalling include requests for routing information for communications; diverting, by the switch/STP, all of the signalling items which concern subscribers of the first group and leaving undiverted the signaling items which concern subscribers of the second group; responding, by a decision unit, to requests for routing information in the diverted signalling items with the address of a dummy termination device (260, 226) comprising a virtual MSC/VLR which causes the respective communications to be routed to the dummy termination device instead of to the mobile terminals of the respective destination subscribers; responding, by a Home Location Register, to requests for routing information in the undiverted signalling with routing information of the respective mobile terminal of the destination subscriber enabling the communication to be routed to said mobile terminal of that subscriber; outputting, by an Enterprise platform, the communications from the dummy termination device together with an indication of respective destination subscribers to a web user interface and allowing the destination subscribers to receive their respective communications on the web user interface. receiving a plurality of items of incoming signalling at a switch/STP of the mobile telephone network wherein each item of signalling includes an indication of the destination subscriber which it concerns, and the items of signalling include requests for routing information for communications; diverting, by the switch/STP, all of the signalling items which concern subscribers of the first group and leaving undiverted the signaling items which concern subscribers of the second group; responding, by a decision unit, to requests for routing information in the diverted signalling items with the address of a dummy termination device (260, 226) comprising a virtual MSC/VLR which causes the respective communications to be routed to the dummy termination device instead of to the mobile terminals of the respective destination subscribers; responding, by a Home Location Register, to requests for routing information in the undiverted signalling with routing information of the respective mobile terminal of the destination subscriber enabling the communication to be routed to said mobile terminal of that subscriber; outputting, by an Enterprise platform, the communications from the dummy termination device together with an indication of respective destination subscribers to a web user interface and allowing the destination subscribers to receive their respective communications on the web user interface.