which PORT i have to use to connect to dm500s Remotely

[tester2]

hi guys, i need your help, i am trying to connect to dm500s Remotely by using dbedit or dcc, but i don't know which FTP PORT i have to use to connect the dm500s Remotely. Because PORT#21 in not connecting Remotely.

I am trying to update Channel list & Server info Remotely in my Brother dm500s.

Already Port forwarding & DMZ etc done in the Remote Router properly.

Any help appricated.

Thanks