Move remote mumble and sip backup to app script

src/freedombone-app-mumble

 }
 
 function backup_remote_mumble {
-	echo -n ''
+	if [ -f /etc/mumble-server.ini ]; then
+		echo $"Backing up VoIP settings"
+		if [ ! -d /root/tempvoipbackup ]; then
+			mkdir -p /root/tempvoipbackup
+		fi
+		cp -f /etc/mumble-server.ini /root/tempvoipbackup
+		cp -f /var/lib/mumble-server/mumble-server.sqlite /root/tempvoipbackup
+		backup_directory_to_friend /root/tempvoipbackup voip
+		echo $"Backup of VoIP settings complete"
+	fi
 }
 
 function restore_remote_mumble {

src/freedombone-app-sip

 VOIP_TURN_NONCE=
 
 function reconfigure_sip {
-    echo -n ''
+	echo -n ''
 }
 
 function upgrade_sip {
 }
 
 function backup_remote_sip {
-	echo -n ''
+	if [ -f /etc/sipwitch.conf ]; then
+		echo $"Backing up SIP settings"
+		temp_backup_dir=/root/tempsipbackup
+		if [ ! -d $temp_backup_dir ]; then
+			mkdir -p $temp_backup_dir
+		fi
+		cp -f /etc/sipwitch.conf $temp_backup_dir
+		backup_directory_to_friend $temp_backup_dir sip
+		echo $"Backup SIP settings complete"
+	fi
 }
 
 function restore_remote_sip {

src/freedombone-backup-remote

 	fi
 }
 
-function backup_voip {
-	if [ -f /etc/mumble-server.ini ]; then
-		echo $"Backing up VoIP settings"
-		if [ ! -d /root/tempvoipbackup ]; then
-			mkdir -p /root/tempvoipbackup
-		fi
-		cp -f /etc/mumble-server.ini /root/tempvoipbackup
-		cp -f /var/lib/mumble-server/mumble-server.sqlite /root/tempvoipbackup
-		cp -f /etc/sipwitch.conf /root/tempvoipbackup
-		backup_directory_to_friend /root/tempvoipbackup voip
-	fi
-}
-
 function backup_mariadb {
 	if [ ${#DATABASE_PASSWORD} -gt 1 ]; then
 		if [ ! -d /root/tempmariadb ]; then
 	backup_certs
 	backup_mailing_list
 
-	backup_voip
 
 	backup_extra_directories
 fi