DMBBS v4.8e by ARTISoft (1989) - This is a full 4 disk release of DMBBS for the Commodore 64.  There are utilities, documentation and extra games in the archive.  

One thing to note is that this version seems to be particular about the modem it looks for during boot.  It didn't want to work with the Ultimate 64 ACIA or a Wifi modem.  Maybe that's configurable outside the boot process.