Description: Table that contains general information about the state of the line or port: information about the physical layer, layer 2 (LAPD) and layer 3 (Q931) for each basic access. Each entry has a table index and a set of variables that give information about the state of the physical layer in accordance with the I.430 standard, the link layer state in accordance with the Q.931 standard, the TEI (if assigned) and the state of the component of the call in accordance with the Q.931 standard of the line determined by the index related to the ISDN interface.