Some people asked me to post a summary of what I have found
out:
1.	pcomm: A programm similar to PCOMM available for MS-DOS-PC.
               Seemed to be a communication-program to work with
               modems  connected to a serial port of the sun.
               ftp-sites:  ftp.uu.net
                           cerl.cecer.army.mil (129.229.1.101)
                           ftp.uni-kl.de
                           and most ftp-sites
2.      rz,sz: rz and sz are a package for sending (sz) and receiving (rz)
               data under the z-modem protocol.
               Source is available on garbo.uwasa.fi and simtel (and most
               other ftp-sites with a sun-directory!)
               It's shareware ($20.00).
I don't know how good or bad these programs work (I'm just installing rz/sz
for tests), but I hope this information will help!
Ciao,
      ---Thomas
o----------------------o
| Thomas Kroener       |
| kroener@cs.uni-sb.de |
o----------------------o
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