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SGI Developer Toolbox 6.1
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SGI Developer Toolbox 6.1 - Disc 4.iso
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1994-08-01
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.ds FF Flex\s-1FAX\s+1
.nr H1 5
.H 1 "Known Problems and Workarounds"
This section describes known problems and limitations in the current
release of the software.
The following list is approximately sorted in order of most important
to least important to correct.
.AL 1 +5
.LI
The Class 1 driver does not correctly handle the case where valid
optional frames are followed by an invalid \s-1DIS\s+1 frame during the
initial call setup phase of the Group 3 fax protocol.
This can cause calls to fail with the diangostic
"Unable to get remote capabilities or remote is not T.4 compatible".
.LI
The management of outbound jobs does not handle multiple modems well.
In particular, multiple jobs to the same destination are serialized
(which may be incorrect if the remote site is capable of accepting
multiple simultaneous calls).
There are also issues with regard to the timely scheduling of jobs
in an environment with multiple fax modems.
.LI
The server does not do copy quality checking of received facsimile data.
.LI
There is no support for the interruption of a receive operation.
.LI
The server does not do a good job of handling ``short pages''; it
should calculate the actual filled region of each page and transmit
only the imaged area if the receiving facsimile machine is capable
of receiving variable length pages.
.LI
There is a race condition in the server where a user may request that
a job be removed/aborted may not be executed even though the user
is told that the job has been aborted and removed from the queue.
This problem only occurs if the request arrives simultaneously with
the recognition of a failed dial attempt.
.LI
The server permits PostScript conversion operations to run indefinitely;
there should be a timeout.
.LI
The server does not gracefully handle the situation where the locally
cached facsimile machine capabilities cause a document to be prepared
for submission that is unacceptable to the destination machine (this
can occur if machines are swapped at the remote end).
The server should automatically disconnect and reformat the documents
in this case;
instead the server returns the original documents to the sender.
.LI
There is no support for submitting documents that are to be
retrieved by polling.
.LI
The server does not generate ad-hoc cover pages when a transmission
is continued after an error.
.LI
There is no support for time-of-day restrictions on when calls may be placed.
.LI
There is no support for restricting which phone numbers can be dialed.
.LI
The \s-1TSI\s+1 checking facility should support a ``narrowing''
mechanism whereby specific \s-1TSI\s+1 can be rejected.
.LI
There are some nuisance problems in the Class 1 modem driver related
to cleanly shutting down after an error.
.LI
It is desirable to support ``tag lines'': lines of text at the top of
each outgoing page that specify a local identification, the time and date,
and the page number.
.LI
There is no mechanism for changing the order of outbound jobs in the queue.
.LI
The \s-1USR\s+1 Courier and Sportster modems return the same product
identification code but use different configuration files.
This causes problems with the auto-detection scheme used by
the \f2faxaddmodem\fP script.
Users must manually setup a prototype configuration file for Sportster modems.
.LE