"tip" leaves device file exclusively open

[Gary Bartlett]

We  are  having  a  problem  with "tip" on a  Sun 3/50  running  Sun UNIX 4.2
Release 3.4.  At the  completion  of some calls,  after  trying to disconnect
from the line/modem,  the  command  hangs.  Killing  it with 'intr' or 'quit'
results in the modem  device  being left  exclusively  open,  with the result
that no other process including our regular uucp links can access the device.

If  anyone  knows  anything  about  this  problem,  or  even how to close the
exclusively open device file, it would be much appreciated.

-- 
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Gary C. Bartlett               NET: garyb at abekrd.co.uk
Abekas Video Systems Ltd.     UUCP: ...!mcvax!ukc!{reading,pyrltd}!abekrd!garyb
12 Portman Rd,   Reading,    PHONE: +44 734 585421
Berkshire.       RG3 1EA.      FAX: +44 734 597267
United Kingdom.              TELEX: 847579