I am a little concerned you don't understand what has to take place here by your use of "FTP", unless it's just a translation or language issue.
For this to work, all the Mitel controllers must be setup in a cluster, sharing information via SDS... if you are not familiar with doing this, I would highly recommend getting your Mitel vendor involved as this can run into all kinds of issues if you are not competent with doing it. The controllers must SHARE data, and there can be significant issues if they have not been doing that as there is a lot of forms that are shared by default.