The invention relates to a method for establishing a communication service with a user equipment in the coverage area of a base station is disclosed. The base station is part of a telecommunication system comprising a plurality of base stations connected to a core network containing a connection information database. In the method, at least one communication identifier is received by the base station of the user equipment in the coverage area of the base station after the base station has processed information indicative of a disconnection between the base station and the connection information database, e.g. a disconnection between the base station and the core network. The received at least one communication identifier is stored in a local storage associated with the base station. The communication service is established via the base station using the communication identifier from the local storage.