diff --git a/libs/freetdm/src/ftmod/ftmod_sangoma_isdn/ftmod_sangoma_isdn.h b/libs/freetdm/src/ftmod/ftmod_sangoma_isdn/ftmod_sangoma_isdn.h
index 68e1371b79..280b3ed527 100644
--- a/libs/freetdm/src/ftmod/ftmod_sangoma_isdn/ftmod_sangoma_isdn.h
+++ b/libs/freetdm/src/ftmod/ftmod_sangoma_isdn/ftmod_sangoma_isdn.h
@@ -251,7 +251,8 @@ typedef struct sngisdn_span_data {
 	uint8_t			raw_trace_q931; /* TODO: combine with trace_flags */
 	uint8_t			raw_trace_q921; /* TODO: combine with trace_flags */
 	uint8_t			timer_t3;
-	uint8_t			restart_opt;	
+	uint8_t			restart_opt;
+	uint8_t			force_sending_complete;
 	char*			local_numbers[SNGISDN_NUM_LOCAL_NUMBERS];
 	ftdm_sched_t 	*sched;
 	ftdm_queue_t 	*event_queue;
diff --git a/libs/freetdm/src/ftmod/ftmod_sangoma_isdn/ftmod_sangoma_isdn_cfg.c b/libs/freetdm/src/ftmod/ftmod_sangoma_isdn/ftmod_sangoma_isdn_cfg.c
index ec688eb2ba..c4e64d7727 100644
--- a/libs/freetdm/src/ftmod/ftmod_sangoma_isdn/ftmod_sangoma_isdn_cfg.c
+++ b/libs/freetdm/src/ftmod/ftmod_sangoma_isdn/ftmod_sangoma_isdn_cfg.c
@@ -286,7 +286,8 @@ ftdm_status_t ftmod_isdn_parse_cfg(ftdm_conf_parameter_t *ftdm_parameters, ftdm_
 	signal_data->restart_opt = SNGISDN_OPT_DEFAULT;
 	signal_data->link_id = span->span_id;
 	signal_data->transfer_timeout = 20000;
-	signal_data->att_remove_dtmf = 1;
+	signal_data->att_remove_dtmf = SNGISDN_OPT_DEFAULT;
+	signal_data->force_sending_complete = SNGISDN_OPT_DEFAULT;
 
 	span->default_caller_data.dnis.plan = FTDM_NPI_INVALID;
 	span->default_caller_data.dnis.type = FTDM_TON_INVALID;
@@ -386,6 +387,8 @@ ftdm_status_t ftmod_isdn_parse_cfg(ftdm_conf_parameter_t *ftdm_parameters, ftdm_
 			parse_yesno(var, val, &signal_data->raw_trace_q931);
 		} else if (!strcasecmp(var, "q921-raw-trace")) {
 			parse_yesno(var, val, &signal_data->raw_trace_q921);
+		} else if (!strcasecmp(var, "force-sending-complete")) {
+			parse_yesno(var, val, &signal_data->force_sending_complete);
 		} else if (!strcasecmp(var, "early-media-override")) {
 			if (parse_early_media(val, span) != FTDM_SUCCESS) {
 				return FTDM_FAIL;
diff --git a/libs/freetdm/src/ftmod/ftmod_sangoma_isdn/ftmod_sangoma_isdn_stack_out.c b/libs/freetdm/src/ftmod/ftmod_sangoma_isdn/ftmod_sangoma_isdn_stack_out.c
index 9a1e66fe51..a424313fc1 100644
--- a/libs/freetdm/src/ftmod/ftmod_sangoma_isdn/ftmod_sangoma_isdn_stack_out.c
+++ b/libs/freetdm/src/ftmod/ftmod_sangoma_isdn/ftmod_sangoma_isdn_stack_out.c
@@ -51,9 +51,10 @@ void sngisdn_snd_setup(ftdm_channel_t *ftdmchan)
 	ftdm_mutex_unlock(g_sngisdn_data.ccs[signal_data->cc_id].mutex);
 
 	memset(&conEvnt, 0, sizeof(conEvnt));
-	if (signal_data->switchtype == SNGISDN_SWITCH_EUROISDN) {
+	if (signal_data->switchtype == SNGISDN_SWITCH_EUROISDN || signal_data->force_sending_complete == SNGISDN_OPT_TRUE) {
 		conEvnt.sndCmplt.eh.pres = PRSNT_NODEF;
 	}
+	
 	if (ftdmchan->span->trunk_type == FTDM_TRUNK_BRI_PTMP &&
 		signal_data->signalling == SNGISDN_SIGNALING_NET) {
 		sngisdn_info->ces = CES_MNGMNT;
diff --git a/libs/freetdm/src/ftmod/ftmod_sangoma_isdn/ftmod_sangoma_isdn_transfer.c b/libs/freetdm/src/ftmod/ftmod_sangoma_isdn/ftmod_sangoma_isdn_transfer.c
index f00087a061..4c0c9555dd 100644
--- a/libs/freetdm/src/ftmod/ftmod_sangoma_isdn/ftmod_sangoma_isdn_transfer.c
+++ b/libs/freetdm/src/ftmod/ftmod_sangoma_isdn/ftmod_sangoma_isdn_transfer.c
@@ -273,7 +273,7 @@ ftdm_status_t sngisdn_att_transfer_process_dtmf(ftdm_channel_t *ftdmchan, const
 		att_courtesy_transfer_complete(sngisdn_info, sngisdn_info->transfer_data.response);
 	}
 
-	if (signal_data->att_remove_dtmf) {
+	if (signal_data->att_remove_dtmf != SNGISDN_OPT_FALSE) {
 		/* If we return FTDM_BREAK, dtmf event is not queue'ed to user */
 		status = FTDM_BREAK;
 	}