The function of custom greeting allows greeting the
callers by messages which present your company or by any other variant which
conforms to the structure of your company.
Feature allows subscribers calling to a certain number in order to connect to a conference call. The one, who dials the number, will connect to the conference. However as a conference controller one should give that certain number to all the participants and set the time for conference in order for the participants to be able to set up a successful conference.