FS-5322 --resolve

src/mod/endpoints/mod_sofia/mod_sofia.c

@@ -1107,10 +1107,6 @@ static switch_status_t sofia_send_dtmf(switch_core_session_t *session, const swi
 	tech_pvt = (private_object_t *) switch_core_session_get_private(session);
 	switch_assert(tech_pvt != NULL);
 
-	if (switch_channel_test_flag(tech_pvt->channel, CF_DROP_DTMF)) {
-		return SWITCH_STATUS_SUCCESS;
-	}
-
 	dtmf_type = tech_pvt->mparams.dtmf_type;
 
 	/* We only can send INFO when we have no media */

src/switch_core_io.c

 /* 
- * FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
+ * FreeSWITCH Moular Media Switching Software Library / Soft-Switch Application
  * Copyright (C) 2005-2012, Anthony Minessale II <anthm@freeswitch.org>
  *
  * Version: MPL 1.1
@@ -1616,6 +1616,15 @@ SWITCH_DECLARE(switch_status_t) switch_core_session_send_dtmf(switch_core_sessio
 		return SWITCH_STATUS_SUCCESS;
 	}
 
+	if (switch_channel_test_flag(session->channel, CF_DROP_DTMF)) {
+		const char *file = switch_channel_get_variable_dup(session->channel, "drop_dtmf_masking_file", SWITCH_FALSE, -1);
+
+		if (!zstr(file)) {
+			switch_ivr_broadcast(switch_core_session_get_uuid(session), file, SMF_ECHO_ALEG);
+		}
+		return SWITCH_STATUS_SUCCESS;
+	}
+
 	switch_assert(dtmf);
 
 	new_dtmf = *dtmf;