SUPPORT FOR NETWORK ROUTING SELECTION

Retrieval of address data for control of routing through a network, such as a telephone network or an e-mail network is supported by a database with pre-stored address resolution information. Input from users is used to expand the database. When a first user inputs information that links a destination in the network to an information item, the database is expanded by adding a record that links the information item to a source identifier of the source and a destination identifier of the destination. Subsequently, the added record is compared with address describing data from a second user. A destination address may be derived from the address describing data for example when at least one attribute associated with the user and the source identifier match and at least part of the address describing data matches the information item. In another embodiment an address of the source identifier may be used as a destination address for the second user, when address describing data from the second user matches with the information item from the record.