on_r2_signal 2002 mod_freetdm/mod_freetdm.c static FIO_SIGNAL_CB_FUNCTION(on_r2_signal) on_r2_signal 3364 mod_freetdm/mod_freetdm.c if (ftdm_configure_span_signaling(span, "r2", on_r2_signal, spanparameters) != FTDM_SUCCESS) { on_r2_signal 10 src/testr2.c static FIO_SIGNAL_CB_FUNCTION(on_r2_signal) on_r2_signal 121 src/testr2.c if (ftdm_configure_span_signaling(span, "r2", on_r2_signal, parameters) == FTDM_SUCCESS) {