diff --git a/libs/freetdm/src/ftmod/ftmod_analog/ftmod_analog.c b/libs/freetdm/src/ftmod/ftmod_analog/ftmod_analog.c
index 2e430ff2ee..6a47b94ff5 100644
--- a/libs/freetdm/src/ftmod/ftmod_analog/ftmod_analog.c
+++ b/libs/freetdm/src/ftmod/ftmod_analog/ftmod_analog.c
@@ -232,6 +232,7 @@ static FIO_SIG_CONFIGURE_FUNCTION(ftdm_analog_configure_span)
 
 	if (callwaiting) {
 		for (i = 1; i <= span->chan_count; i++) {
+			ftdm_log_chan_msg(span->channels[i], FTDM_LOG_DEBUG, "Enabled call waiting\n");
 			ftdm_channel_set_feature(span->channels[i], FTDM_CHANNEL_FEATURE_CALLWAITING);
 		}
 	}
diff --git a/libs/openzap/src/ozmod/ozmod_analog/ozmod_analog.c b/libs/openzap/src/ozmod/ozmod_analog/ozmod_analog.c
index bfbc52f46f..d878b9195e 100644
--- a/libs/openzap/src/ozmod/ozmod_analog/ozmod_analog.c
+++ b/libs/openzap/src/ozmod/ozmod_analog/ozmod_analog.c
@@ -181,6 +181,7 @@ static ZIO_SIG_CONFIGURE_FUNCTION(zap_analog_configure_span)
 
 	if (callwaiting) {
 		for (i = 1; i <= span->chan_count; i++) {
+			zap_log(ZAP_LOG_DEBUG, "Enabling call waiting for channel %d:%d\n", span->channels[i]->span_id, span->channels[i]->chan_id);
 			zap_channel_set_feature(span->channels[i], ZAP_CHANNEL_FEATURE_CALLWAITING);
 		}
 	}