add ced detection

src/mod/applications/mod_spandsp/mod_spandsp_fax.c

@@ -2147,6 +2147,8 @@ switch_status_t spandsp_fax_detect_session(switch_core_session_t *session,
 	switch_media_bug_flag_t bflags = 0;
 	const char *var;
 	switch_codec_implementation_t read_impl = { 0 };
+	switch_bool_t set_private = SWITCH_TRUE;
+
 	switch_core_session_get_read_impl(session, &read_impl);
 
 	if (timeout) {
@@ -2154,8 +2156,9 @@ switch_status_t spandsp_fax_detect_session(switch_core_session_t *session,
 	}
 
 	if (cont) {
-		switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Max Tones Reached!\n");
-		return SWITCH_STATUS_FALSE;
+		//switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Max Tones Reached!\n");
+		set_private = SWITCH_FALSE;
+		cont = NULL;
 	}
 
 	if (!cont && !(cont = switch_core_session_alloc(session, sizeof(*cont)))) {
@@ -2218,8 +2221,9 @@ switch_status_t spandsp_fax_detect_session(switch_core_session_t *session,
 		cont->bug_running = 0;
 		return status;
 	}
-
-	switch_channel_set_private(channel, "_fax_tone_detect_", cont);
+	
+	if (set_private)
+		switch_channel_set_private(channel, "_fax_tone_detect_", cont);
 
 	return SWITCH_STATUS_SUCCESS;
 }

src/mod/endpoints/mod_media_gateway/media_gateway.c

@@ -184,6 +184,7 @@ switch_status_t megaco_activate_termination(mg_termination_t *term)
         	
         if (term->type == MG_TERM_TDM) {
             switch_core_session_execute_application_async(session, "spandsp_start_fax_detect", "mg_notify cng 120 cng");
+            switch_core_session_execute_application_async(session, "spandsp_start_fax_detect", "mg_notify ced 120 ced");
         }
     }
     

src/mod/endpoints/mod_media_gateway/media_gateway_stack.h

@@ -168,6 +168,8 @@ switch_status_t mg_send_term_service_change(char *span_name, char *chan_number,
 
 
 switch_status_t  mg_send_t38_cng_notify(megaco_profile_t* mg_profile, const char* term_name);
+switch_status_t  mg_send_t38_ans_notify(megaco_profile_t* mg_profile, const char* term_name);
+switch_status_t  mg_send_t38_v21flag_notify(megaco_profile_t* mg_profile, const char* term_name);
 
 
 switch_status_t sng_mgco_cfg(megaco_profile_t* profile);

src/mod/endpoints/mod_media_gateway/mod_media_gateway.c

@@ -39,7 +39,9 @@ SWITCH_STANDARD_APP(mg_notify_function)
     if (!strcmp(data, "cng")) {
         mg_send_t38_cng_notify(term->profile, term->name);
         switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "Sent CNG notify\n");
-		switch_channel_set_variable(channel, "mg_cng_detected", "true");
+    } else if (!strcmp(data, "ced")) {
+	mg_send_t38_ans_notify(term->profile, term->name);
+	switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "Sent CED notify\n");
     }
 }