🚀 go-pugleaf

We have a difficult problem with our DoveFax modem. I've read the manual,
and contacted Dove several times, and we can't figure what the problem is.
Our DoveFax modem will work on our slab. It will send, but not receive,  
when moved to either of two '030 cubes with 16M and 24M of memory.
I need the serial ports on the slab to drive two other instruments, so I  
can't move the FAX modem back. 

It answers the phone, tries to negotiate with the other modem (whistles  
and beeps and stuff). The error message on the console is 

!!%<?>%DOVE: Incoming call negotiation failed after 6 attempts
!!%<?>%DOVE: Receive failed. Error during handshake.
The version is 1.02

Here are some things that we're pretty sure are not the problem:
There are no getty's running on either of the serial ports on either of  
the cubes; the phone line length is long, but it still works on the slab  
with the long phone line; we've tried it from a dozen different FAX  
machines -- it never works; it's not the hardware -- when we move it back  
to the slab without changing anything about the line or the modem, it  
works. 

If anyone has any ideas, we would greatly appreciate them, 'cuz we are all  
stumped. 

Please respond by mail.

Thanks,

Charles

neveu@milo.berkeley.edu