Ultra-Com BBS v1.3 (Also known as UCBBS) by Pudwerx (Released 1990) - From the little research I've done, my guess is that this is a heavily modded / improved Ivory BBS.  There is a small program on the disk that goes over the BBS features both from the user's perspective and the sysops. 

Thanks to DLH over at Bombjack for providing the disk.