ftdm_user_layer1_prot2str 302 src/ftdm_io.c FTDM_STR2ENUM(ftdm_str2ftdm_usr_layer1_prot, ftdm_user_layer1_prot2str, ftdm_user_layer1_prot_t, USER_LAYER1_PROT_NAMES, FTDM_USER_LAYER1_PROT_INVALID) ftdm_user_layer1_prot2str 268 src/include/freetdm.h FTDM_STR2ENUM_P(ftdm_str2ftdm_usr_layer1_prot, ftdm_user_layer1_prot2str, ftdm_user_layer1_prot_t)