adding code to generate "DTMF Removal Enable/Disable" event from mod_media gateway to freetdm.

src/mod/endpoints/mod_media_gateway/media_gateway.c

@@ -448,7 +448,7 @@ void megaco_termination_destroy(mg_termination_t *term)
 	
 	if(switch_test_flag(term, MG_DTMF_REMOVAL_ENABLE)){
 		switch_clear_flag(term, MG_DTMF_REMOVAL_ENABLE);
-		megaco_tdm_term_dtmf_removal(term,0x00);
+		//megaco_tdm_term_dtmf_removal(term,0x00);
 	}
     
     if (term->type == MG_TERM_RTP) {
@@ -792,7 +792,6 @@ switch_status_t mgco_process_mgc_failure(SuId suId)
 	if(0x01 == profile->peer_active){
 		/* MGC failure during active association , release all on-going calls contexts */
 		megaco_release_all_calls(profile);
-		profile->peer_active = 0x00;
 	}
 
 	return SWITCH_STATUS_SUCCESS;

src/mod/endpoints/mod_media_gateway/media_gateway_cmd_handler.c

@@ -744,9 +744,12 @@ switch_status_t handle_mg_add_cmd(megaco_profile_t* mg_profile, MgMgcoCommand *i
 	if(is_rtp){
 		mg_termination_t* tdm_term = NULL;
 		/* disable dtmf removal */
-		tdm_term = megaco_context_get_peer_term(mg_ctxt, term);
-		if(term->u.rtp.rfc2833_pt){
-			megaco_tdm_term_dtmf_removal(tdm_term,0x01);
+		if(NULL != (tdm_term = megaco_context_get_peer_term(mg_ctxt, term))){
+			if(term->u.rtp.rfc2833_pt){
+				megaco_tdm_term_dtmf_removal(tdm_term,0x01);
+			}else{
+				megaco_tdm_term_dtmf_removal(tdm_term,0x00);
+			}
 		}
 	}
 

src/mod/endpoints/mod_media_gateway/media_gateway_xml.c

@@ -264,9 +264,11 @@ void mg_create_tdm_term(megaco_profile_t *profile, const char *tech, const char
 			term->name, term->u.tdm.span_name, term->u.tdm.channel);
 	megaco_prepare_tdm_termination(term);
 
+#if 0
 	/* by-default : DTMF removal disable 
 	 * by default do not modify in-band audio stream*/
 	megaco_tdm_term_dtmf_removal(term,0x00);
+#endif
 
 	profile->total_cfg_term++;
 }