Manpages

NAME

HylaFAX-client - introduction to Hyla FAX client applications and usage

SYNOPSIS

sendfax [options] [files...]
sendpage [options] [message...]
faxstat [options]
faxrm [options]
faxalter [options] jobid...
fax2ps [options] [files...]

DESCRIPTION

Hyla FAX is a telecommunication system for UNIX® systems. Among the features of Hyla FAX are:

The Hyla FAX software is divided into two packages: software used on client machines and software used on machines where one or more modems reside. Client software includes:

Many systems also support submission of outgoing facsimile by electronic mail and/or graphical interfaces to the sendfax program. Such facilities are site-dependent; consult local documentation for more information.

GETTING STARTED

To use the Hyla FAX client software on your machine you need to either load the appropriate software on your machine, or you need to locate a machine that already has the client software installed and setup symbolic links to the appropriate directories. If you choose the latter, then beware that you need links to three directories: the directory where client applications reside, /usr/bin, the directory where the client application database files reside, /etc/hylafax, and the directory where document conversion programs reside, /usr/sbin (the last two directories may be the same on your system).

Once the software is setup on your machine you need to locate a host that has a facsimile server that you can use. The host, and possibly the modem on the host, should be defined in your environment in the FAXSERVER variable. For example, for csh users,

setenv FAXSERVER flake.asd

or for ksh or sh users,

FAXSERVER=flake.asd; export FAXSERVER

If there are multiple modems on your server then you may be assigned to use a specific modem. For example, if you are to use the modem attached to the ttym2 port on the server machine, then the FAXSERVER variable should be setup as

FAXSERVER=ttym2 [AT] flake.asd; export FAXSERVER

(Note: the SNPPSERVER environment variable is used instead of FAXSERVER by the sendpage program; consult sendpage(8) for more information.)

Note also, that before you can submit outgoing facsimile jobs the administrator for the facsimile server may need to register your identity in an access control list. You will encounter the message ’’530 User %s access denied.’’ if access to your server is controlled and you are not properly registered or you may be prompted for a password and then denied service with ’’530 Login incorrect.’’.

DIAL STRINGS

A dial string specifies how to dial the telephone in order to reach a destination facsimile machine. Hyla FAX permits arbitrary strings to be passed to the facsimile server so that users can specify credit card information, PBX routing information, etc. Alphabetic characters are automatically mapped to their numeric key equivalents (e.g. ’’1800GotMilk’’ becomes ’’18004686455’’). Other characters can be included for readability; anything that must be stripped will be removed by the server before the dialing string is passed to the fax modem. Private information such as credit card access codes are withheld from status messages and publicly accessible log files (with proper configuration). Facsimile servers also automatically insert any leading dialing prefixing strings that are required to place outgoing phone calls; e.g. dialing ’’9’’ to get an outside line. Additionally, if a phone number is fully specified with the international direct dialing digits ( IDDD), then any prefixing long distance or international dialing codes that are required to place the call will be inserted in the dial string by the server. For example, ’’+31.77.594.131’’ is a phone number in the Netherlands; it would be converted to ’’0113177594131’’ if the call is placed in the United States. The number ’’+14159657824’’ is a phone number in California; if this number is called from within the 415 area code in the United States, then the server would automatically convert this to ’’9657824’’ because in the San Francisco Bay Area, local phone calls must not include the area code and long distance prefixing code.

The general rule in crafting dial strings is to specify exactly what you would dial on your telephone; and, in addition, the actual phone number can be specified in a location-independent manner by using the IDD syntax of ’’+country-code local-part’’.

COVER PAGES

The sendfax program can automatically generate a cover page for each outgoing facsimile. Such cover pages are actually created by the faxcover(1) program by using information that is deduced by sendfax and information that is supplied on the command line invocation of sendfax. Users may also request that sendfax not supply a cover page and then provide their own cover page as part of the data that is to be transmitted.

Automatically-generated cover pages may include the following information:

Certain of this information is currently obtained from a user’s personal facsimile database file; ~/.faxdb. Note that this file is deprecated; it is described here only because it is still supported for compatibility with older versions of the software.

The .faxdb file is an ASCII file with entries of the form

keyword : value

where keyword includes:

Data is free format. Whitespace (blank, tab, newline) can be freely interspersed with tokens. If tokens include whitespace, they must be enclosed in quote marks (’’"’’). The ’’#’’ character introduces a comment—everything to the end of the line is discarded.

Entries are collected into aggregate records by enclosing them in ’’[]’’. Records can be nested to create a hierarchy that that supports the inheritance of information—unspecified information is inherited from parent aggregate records.

For example, a sample file might be:

[ Company: "Silicon Graphics, Inc."

Location:

]

which could be extended to include another person at Silicon Graphics with the following:

[ Company: "Silicon Graphics, Inc."

Location:

]

Experience indicates that the hierarchical nature of this database format makes it difficult to maintain with automated mechanisms. As a result it is being replaced by other, more straightforward databases that are managed by programs that front-end the sendfax program.

CONFIGURATION FILES

Hyla FAX client applications can be tailored on a per-user and per-site basis through configuration files. Per-site controls are placed in the file /etc/hylafax/hyla.conf, while per-user controls go in ~/.hylarc. In addition a few programs that have many parameters that are specific to their operation support an additional configuration file; these files are identified in their manual pages.

Configuration files have a simple format and are entirely ASCII. A configuration parameter is of the form
tag: value
where a tag identifies a parameter and a value is either a string, number, or boolean value. Comments are introduced by the ’’#’’ character and extend to the end of the line. String values start at the first non-blank character after the ’’:’’ and continue to the first non-whitespace character or, if whitespace is to be included, may be enclosed in quote marks (’’"’’). String values enclosed in quote marks may also use the standard C programming conventions for specifying escape codes; e.g. ’’\n’’ for a newline character and ’’\xxx’’ for an octal value. Numeric values are specified according to the C programming conventions (leading ’’0x’’ for hex, leading ’’0’’ for octal, otherwise decimal). Boolean values are case insensitive. For a true value, either ’’Yes’’ or ’’On’’ should be used. For a false value, use ’’No’’ or ’’Off’’.

RECEIVED FACSIMILE

Incoming facsimile are received by facsimile servers and deposited in a receive queue directory on the server machine. Depending on the server’s configuration, files in this directory may or may not be readable by normal users. The faxstat program can be used to view the contents of the receive queue directory:

hyla% faxstat -r
HylaFAX scheduler on hyla.chez.sgi.com: Running
Modem ttyf2 (+1 510 999-0123): Running and idle


Protect Page  Owner        Sender/TSI  Recvd@ Filename
-rw-r--    9  fax       1 510 5268781 05Jan96 fax00005.tif
-rw-r--    8  fax       1 510 5268781 07Jan96 fax00009.tif
-rw-r--    2  fax       1 510 5268781 07Jan96 fax00010.tif
-rw-r--    3  fax        +14159657824 08Jan96 fax00011.tif
-rw-r--    2  fax        +14159657824 08Jan96 fax00012.tif

Consult the faxstat manual page for a more detailed description of this information.

Received facsimile are stored as TIFF Class F files. These files are bilevel images that are encoded using the CCITT T.4 or CCITT T.6 encoding algorithms. The fax2ps(1) program can be used to view and print these files. A file can be viewed by converting it to P OST S CRIPT and then viewing it with a suitable P OST S CRIPT previewing program, such as xpsview(1) (Adobe’s Display P OST S CRIPT -based viewer), ghostview(1) (a public domain previewer), or image viewer programs such as viewfax(1) (public domain), faxview(1) (another public domain TIFF viewer program), xv(1) (shareware and/or public domain), or xtiff(1) (a program included in the public domain TIFF software distribution). Consult your local resources to figure out what tools are available for viewing and printing received facsimile.

CLIENT-SERVER PROTOCOL

Hyla FAX client applications communicate with servers using either a special-purpose communications protocol that is modeled after the Internet File Transfer Protocol ( FTP ) or, when submitting alpha-numeric pages, the Simple Network Paging Protocol ( SNPP ), specified in RFC 1861. All client programs support a -v option that can be used to observe the protocol message exchanges. In some situations it may be more effective to communicate directly with a Hyla FAX server using the client-server protocol. This can be accomplished with an FTP or Telnet client application; though an FTP client is recommended because it implements the protocol needed to obtain server status information. For information on the server-side support provided with Hyla FAX consult hfaxd(8). For documentation on the client-server fax protocol consult RFC XXXX (to be filled in).

EXAMPLES

This section gives several examples of command line usage; consult the manual pages for the individual commands for information on the options and program operation.

The following command queues the file zall.ps for transmission to John Doe at the number (123)456-7890 using fine mode; the server will attempt to send it at 4:30 A.M.:

sendfax -a "0430" -m -d "John Doe [AT] 1.7890" zall.ps

(the leading ’’1.’’ is supplied to dial area code ’’123’’ in the United States.)

The following command generates a one-page facsimile that is just a cover page:

faxcover -t "John Doe" -n "(123)456-7890"
    -c "Sorry John, I forgot the meeting..." |
    sendfax -n -d "(123)456-7890"

(note that the line was broken into several lines solely for presentation.)

The following command displays the status of the facsimile server and any jobs queued for transmission:

faxstat -s

The following command displays the status of the facsimile server and any documents waiting in the receive queue on the server machine:

faxstat -r

The following command shows how to use an FTP client program to communicate directly with a Hyla FAX server:

hyla% ftp localhost hylafax

Connected to localhost.
220 hyla.chez.sgi.com server (HylaFAX (tm) Version 4.0beta005) ready.
Name (localhost:sam):
230 User sam logged in.
Remote system type is UNIX.
Using binary mode to transfer files.
ftp> dir sendq
200 PORT command successful.
150 Opening new data connection for "sendq".
208  126 S    sam 5268781       0:3   1:12   16:54 No local dialtone
226 Transfer complete.
ftp> quote jkill 208
200 Job 208 killed.
ftp> dir doneq
200 PORT command successful.
150 Opening new data connection for "doneq".
208  126 D    sam 5268781       0:3   1:12         No local dialtone
226 Transfer complete.
ftp> quote jdele 208
200 Job 208 deleted; current job: (default).
ftp> dir docq
200 PORT command successful.
150 Opening new data connection for "docq".
-rw----   1      sam    11093 Jan 21 16:48 doc9.ps
226 Transfer complete.
ftp> dele docq/doc9.ps
250 DELE command successful.
ftp> dir recvq
200 PORT command successful.
150 Opening new data connection for "recvq".
-rw-r--    4  fax       1 510 5268781 30Sep95 faxAAAa006uh
-rw-r--    9  fax        +14159657824 11Nov95 faxAAAa006nC
-rw----   25  fax        +14159657824 Fri08PM fax00016.tif
226 Transfer complete.
ftp> quit
221 Goodbye.

The following command shows how to use a Telnet client program to communicate directly with an SNPP server:

hyla% telnet melange.esd 444

Trying 192.111.25.40...
Connected to melange.esd.sgi.com.
Escape character is ’^]’.
220 melange.esd.sgi.com SNPP server (HylaFAX (tm) Version 4.0beta010) ready.
login sam
230 User sam logged in.
help
214 The following commands are recognized (* =>’s unimplemented).
214 2WAY*   ALER*   DATA    HOLD    LOGI    MSTA*   PING    RTYP*   STAT
214 ABOR    CALL*   EXPT*   KTAG*   MCRE*   NOQU*   QUIT    SEND    SUBJ
214 ACKR*   COVE*   HELP    LEVE    MESS    PAGE    RESE    SITE
250 Direct comments to FaxMaster [AT] melange.com.
page 5551212
250 Pager ID accepted; provider: 1800SkyTel pin: 5551212 jobid: 276.
send
250 Message processing completed.
quit
221 Goodbye.
Connection closed by foreign host.

FILES

/usr/bin/sendfax for sending facsimile

/var/spool/hylafax/tmp/sndfaxXXXXXXtemporary files

SEE ALSO

at(1), fax2ps(1), faxalter(1), faxcover(1), faxmail(1), faxrm(1), faxstat(1), sgi2fax(1), faxq(8), viewfax(1), hylafax-server(5), dialrules(5), pagesizes(5), typerules(5), services(4)