ISDN_P_NT_S0      225 include/linux/mISDNif.h #define IS_ISDN_P_NT(p) ((p == ISDN_P_NT_S0) || (p == ISDN_P_NT_E1) || \
ISDN_P_NT_S0      227 include/linux/mISDNif.h #define IS_ISDN_P_S0(p) ((p == ISDN_P_TE_S0) || (p == ISDN_P_NT_S0))