Is there a "dialinfo" that supports extended result codes?

[Karl Lehenbauer]

(...sorry if this has been discussed recently, we missed the control message
that made the group unmoderated so we haven't seen much Microport stuff)

Has somebody modified the dialinfo file in /usr/lib/uucp to accept the
extended result codes many of the Hayes-compatible modems such as "BUSY"
and "NO DIAL TONE"?  The advantage of using the BUSY string is that
the modem returns it as soon it detects the busy signal.  Under the
current arrangement, uucp has to wait for the modem to time out
(thirty or so seconds) and send "NO CARRIER."

The dialinfo file in the 2.3 release has a comment refering to documentation:
dialer.1, dialprint.1, dial.2 and dialinfo.2.  These didn't come with the
system.  Anyone have them?  Microport?