1. A modem for use at a terminal, the modem comprising: first interface apparatus comprising a first wireless transceiver arranged to connect to a wireless cellular network; second interface apparatus arranged to connect to the terminal; and processing apparatus configured to perform operations of a wireless cellular modem so as to enable the terminal to access a further, packet-based network via the second interface apparatus, the first interface apparatus and a plurality of access points of the wireless cellular network, each of the plurality of access points of the wireless cellular network having a respective name; wherein each of said plurality of access points is configured according to a different version of a packet communication protocol, said plurality of access points comprising at least a first access point configured according to a first version of the packet communication protocol and a second access point configured according to a second version of the packet communication protocol; wherein the processing apparatus is configured to receive a modem command from the terminal via the second interface apparatus, the modem command comprising a field for specifying the name of one of said plurality of access points in the form of a text string; wherein said field comprises a plurality of names, wherein in each name corresponds to one of said plurality of access points of the wireless cellular network and one or more separator characters between each of the names in the field; and wherein the processing apparatus is configured to extract each of the names of said plurality of access points from said field based on the one or more separator characters, and to establish a first channel with the first access point based on a first of the names extracted from said field, and establish a second channel with the second access point based on a second of the names extracted from said field.
1. A modem for use at a terminal, the modem comprising: first interface apparatus comprising a first wireless transceiver arranged to connect to a wireless cellular network; second interface apparatus arranged to connect to the terminal; and processing apparatus configured to perform operations of a wireless cellular modem so as to enable the terminal to access a further, packet-based network via the second interface apparatus, the first interface apparatus and a plurality of access points of the wireless cellular network, each of the plurality of access points of the wireless cellular network having a respective name; wherein each of said plurality of access points is configured according to a different version of a packet communication protocol, said plurality of access points comprising at least a first access point configured according to a first version of the packet communication protocol and a second access point configured according to a second version of the packet communication protocol; wherein the processing apparatus is configured to receive a modem command from the terminal via the second interface apparatus, the modem command comprising a field for specifying the name of one of said plurality of access points in the form of a text string; wherein said field comprises a plurality of names, wherein in each name corresponds to one of said plurality of access points of the wireless cellular network and one or more separator characters between each of the names in the field; and wherein the processing apparatus is configured to extract each of the names of said plurality of access points from said field based on the one or more separator characters, and to establish a first channel with the first access point based on a first of the names extracted from said field, and establish a second channel with the second access point based on a second of the names extracted from said field. 13. The modem of claim 1 , wherein the further network is the Internet.