The accounts for free on 53KF provided with 2 Seat (one manage mark and one customer service mark). the number of received callers on the same time is one,saticfying the requirements of individual sites basically.As to the sites of the enterprices,we provided the function of infinite seat.After opening this kind of function,its mark numbers and the numbers of the callers are on longer restricted.Edditionally,53KF also provided department setting such individuations for these guests.