A method of providing a telecommunications link between a first user and a second user in a mobile telephone network, the method comprising: receiving a request from the first user to provide a telecommunications link to the second user, wherein the request from the first user comprises a call setup connection request for a connection to the second user in the mobile telephone network, or a message transmission request for transmission of a message to the second user in the mobile telephone network; providing, at a server, an application for providing an interface to enable users in a networked community of users to manage specified relationships with other users in the community, wherein the users in the networked community interact over a communications network, wherein the communications network comprises the Internet; receiving, at the application, a registration request from the first user, the registration request including an identifier of the first user in the mobile telephone network and an identifier of the first user in the community of users; storing, at the application, the identifiers in a database of registered users; receiving, from the server, information identifying at least one specified relationship between two users in the networked community of users, wherein the information is received periodically as relationships are formed in the communications network and the information includes the identifiers; storing the information in a database local to the mobile telephone network; determining from the stored information, whether the first user and the second user have a specified relationship in the community of users; and specifying at least one setting for the telecommunications link based on whether the first user and the second user have a specified relationship in the community of users. receiving a request from the first user to provide a telecommunications link to the second user, wherein the request from the first user comprises a call setup connection request for a connection to the second user in the mobile telephone network, or a message transmission request for transmission of a message to the second user in the mobile telephone network; providing, at a server, an application for providing an interface to enable users in a networked community of users to manage specified relationships with other users in the community, wherein the users in the networked community interact over a communications network, wherein the communications network comprises the Internet; receiving, at the application, a registration request from the first user, the registration request including an identifier of the first user in the mobile telephone network and an identifier of the first user in the community of users; storing, at the application, the identifiers in a database of registered users; receiving, from the server, information identifying at least one specified relationship between two users in the networked community of users, wherein the information is received periodically as relationships are formed in the communications network and the information includes the identifiers; storing the information in a database local to the mobile telephone network; determining from the stored information, whether the first user and the second user have a specified relationship in the community of users; and specifying at least one setting for the telecommunications link based on whether the first user and the second user have a specified relationship in the community of users.