FTDM_CHANNEL_FEATURE_CALLWAITING 1840 src/ftdm_io.c && ftdm_channel_test_feature(check, FTDM_CHANNEL_FEATURE_CALLWAITING)) { FTDM_CHANNEL_FEATURE_CALLWAITING 236 src/ftmod/ftmod_analog/ftmod_analog.c ftdm_channel_set_feature(span->channels[i], FTDM_CHANNEL_FEATURE_CALLWAITING);