Chapter 3. Application Configuration3-2 Express 3010/3110 User Manual 61200239L1-20ISDN Phone Number (Local Directory Number)This option allows the entry of 0, 1, or 2 LDNs. The LDN is used whenplacing or receiving calls. The LDN is the local phone number as-signed to the line.LDN 1 = 5 5 5 1 2 1 2LDN 2 = 5 5 5 1 2 1 2Auto-Detect SPIDs/Switch (Express 3010 only)This can be set to Active or Disabled. If set to Active, the SPID andswitch type for your ISDN switch are automatically detected. If set toDisabled, no automatic detection takes place.Switch ProtocolFind out what kind of ISDN switch your local CO is using by askingyour telephone administrator or your telephone company representa-tive. The Express can be configured for a Northern Telecom DMS-100,LUCENT 5ESS® CO switch, a switch conforming to the NationalISDN-1 standard (usually an LUCENT 5ESS, NTI DMS-100™, or Sie-mens EWSD), or an NEC Switch.Press the number corresponding to Switch Protocol and press Enterto display the Switch Protocol options: LUCENT 5ESS, DMS-100,National ISDN1, NEC (Express 3110), and EuroISDN (Express 3110).Press the number corresponding to the desired option and press Enteragain.Call TypeThe Call type can be configured four different ways, depending onthe type of service used. Press the number corresponding to Call Typeand press Enter to display the Call Type options: Speech, Audio, Data56k, and Data 64k. Press the number corresponding to the desired op-tion, and then press Enter.