102 C HAPTER 9: TROUBLESHOOTING AND M AINTENANCEUnderstanding ISDNInformationThe ISDN statistics provided are as follows.Layer 1 status: Indicates whether layer 1, the physical connection, of the ISDNline is up or down. If layer 1 remains down after you attempt to place a call, theremay be a problem with your ISDN line. First, check to ensure that the correct cable(labeled ISDN) is firmly connected to the ISDN LAN Modem and the wall jack. If theproblem remains, you should contact your telephone company.Understanding CurrentCall InformationThe current call information provided is as follows.Table 9ISDN Line Information DescriptionLayer 1 status Indicates whether layer 1 of your ISDN line is up or down.SPID 1 status Indicates whether SPID 1 is initialized.SPID 2 status Indicates whether SPID 2 is initialized.Table 10 Current Call Information DescriptionCurrent CallInformationFor This CallType DescriptionCall type Data or voice Indicates the type of call (data or voice) and theB channel rate (56 Kbps or 64 Kbps).Call direction Data or voice Indicates whether the current call is incoming oroutgoing.Service provider name Outgoing data Indicates the destination to which the current call isconnected.IP address in use Data call Indicates the IP address assigned by the serviceprovider.Primary DNS address Outgoing data Indicates the primary DNS address of the serviceprovider to which the current call is connected.Secondary DNS address Outgoing data If a secondary DNS address is needed, indicates thesecondary DNS address of the service provider towhich the current call is connected. This field will beempty if a secondary DNS address is not needed.Data call options Data call If the current call is a data call, indicates the type ofdata call, (Multilink PPP or PPP); number of B channelsin use for the call; whether compression is on or off,authentication type, and whether BACP wasnegotiated (on) or not (off). For example,Multilink(2B)No-BACP/PAP/Compression-On.Call start time Voice or data Displays the date and time the call began.The call has been up for(seconds)Data call Indicates the length of time the current call has beenconnected.The connection hasbeen idle for (seconds)Data call Indicates the length of time the current call has beenidle.Number of octetsreceivedData call Indicates the number of octets (bytes) received by theISDN LAN Modem.Number of octetstransmittedData call Indicates the number of octets (bytes) transmitted bythe ISDN LAN Modem.(continued)