A method of connecting a subscriber terminal to the Internet, wherein the connection is made through an exchange of a public telephone network and the exchange has a plurality of Internet access servers (IASs). In response to a request received from the subscriber terminal, it is determined whether or not an active connection currently exists for that terminal over one of the IASs. If an active connection does not currently exist, transmission bandwidth on one of the IAS is allocated to the subscriber terminal. If an active connection does exist, the IAS on which transmission bandwidth is allocated is identified, and additional bandwidth allocated to the terminal on that IAS if available. If sufficient additional bandwidth is not available, the active connection is transferred to a second IAS on which sufficient bandwidth is available.