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FreePBX with Hylafax and Avantfax on Debian Jessie

I recently had to install a fax2mail and pcfax solution for outbound faxes using a FreePBX. Thee most convenient way to do this is using Hylafax, as it has some decent clients for sending faxes like the Winprint HylaFAX Reloaded Windows printer driver.
For managing and searching inbound faxes, Avantfax is a nice solution that not only covers sending Fax2mail (that could also be done with FreePBX directly with just a few settings), but also has a fax archive which can be made searchable using OCR.

So here is how I did it:
1) Install iaxmodem

apt-get install iaxmodem hylafax-server
vi /etc/iaxmodem/ttyIAX0

device /dev/ttyIAX0
owner uucp:uucp
mode 660
port 4570
refresh 60
server 127.0.0.1
peername 71
secret 111password
codec ulaw
cidname Fax
cidnumber 4311234567
nojitterbuffer

secret 111password
notransfer yes
context from-internal
host dynamic
type friend
port 4570
qualify yes
disallow all
allow alaw
deny 0.0.0.0/0.0.0.0
permit 0.0.0.0/0.0.0.0
requirecalltoken no

3) Setup hylafax with iaxmodem

chown uucp:uucp /etc/iaxmodem/ttyIAX0
/etc/init.d/iaxmodem start
faxsetup

Do you want to run faxaddmodem to configure a modem [yes]?
Serial port that modem is connected to [ttyS0]? ttyIAX0

Country code [1]? 43
Area code [415]? 1
Phone number of fax modem [+1.999.555.1212]? +43.1.1234567
Local identification string (for TSI/CIG) ["NothingSetup"]?
Long distance dialing prefix [1]? 0
International dialing prefix [011]? 00
Dial string rules file (relative to /var/spool/hylafax) [etc/dialrules]?
Tracing during normal server operation [1]?
Tracing during send and receive sessions [11]?
Protection mode for received facsimile [0600]?
Protection mode for session logs [0600]?
Protection mode for ttyS0 [0600]?
Rings to wait before answering [1]?
Modem speaker volume [off]?
Command line arguments to getty program ["-h %l dx_%s"]?
Pathname of TSI access control list file (relative to /var/spool/hylafax) [""]?
Pathname of Caller-ID access control list file (relative to /var/spool/hylafax) [""]?
Tag line font file (relative to /var/spool/hylafax) [etc/lutRS18.pcf]?
Tag line format string ["From %%l|%c|Page %%P of %%T"]?
Time before purging a stale UUCP lock file (secs) [30]?
Hold UUCP lockfile during inbound data calls [Yes]?
Hold UUCP lockfile during inbound voice calls [Yes]?
Percent good lines to accept during copy quality checking [95]?
Max consecutive bad lines to accept during copy quality checking [5]?
Max number of pages to accept in a received facsimile [25]?
Syslog facility name for ServerTracing messages [daemon]?
Set UID to 0 to manipulate CLOCAL [""]?
Use available priority job scheduling mechanism [""]?

The non-default server configuration parameters are:

CountryCode:            43
AreaCode:               1
FAXNumber:              +43.1.1234567
LongDistancePrefix:     0
InternationalPrefix:    00
DialStringRules:        etc/dialrules
SessionTracing:         11
RingsBeforeAnswer:      1
SpeakerVolume:          off
GettyArgs:              "-h %l dx_%s"
LocalIdentifier:        "NothingSetup"
TagLineFont:            etc/lutRS18.pcf
TagLineFormat:          "From %%l|%c|Page %%P of %%T"
MaxRecvPages:           25

Are these ok [yes]?

Now we are going to probe the tty port to figure out the type
of modem that is attached.  This takes a few seconds, so be patient.
Note that if you do not have the modem cabled to the port, or the
modem is turned off, this may hang (just go and cable up the modem
or turn it on, or whatever).

Probing for best speed to talk to modem: 38400 OK.

About fax classes:

The difference between fax classes has to do with how HylaFAX interacts
with the modem and the fax protocol features that are used when sending
or receiving faxes.  One class isn't inherently better than another;
however, one probably will suit a user's needs better than others.

Class 1 relies on HylaFAX to perform the bulk of the fax protocol.
Class 2 relies on the modem to perform the bulk of the fax protocol.
Class 2.0 is similar to Class 2 but may include more features.
Class 1.0 is similar to Class 1 but may add V.34-fax capability.
Class 2.1 is similar to Class 2.0 but adds V.34-fax capability.

HylaFAX generally will have more features when using Class 1/1.0 than
when using most modems' Class 2 or Class 2.0 implementations.  Generally
any problems encountered in Class 1/1.0 can be resolved by modifications
to HylaFAX, but usually any problems encountered in Class 2/2.0/2.1 will
require the modem manufacturer to resolve it.

Use Class 1 unless you have a good reason not to.

This modem looks to have support for Class 1.0 and 1.
How should it be configured [1.0]?

Hmm, this looks like a Class 1.0 modem.
Product code (ATI0) is "spandsp".
Other information (ATI3) is "www.soft-switch.org".
DTE-DCE flow control scheme [default]?
Modem manufacturer is "Unknown".
Modem model is "Unknown".

Using prototype configuration file class1.0...

There is no prototype configuration file for your modem, so we will
have to fill in the appropriate parameters by hand.  You will need the
manual for how to program your modem to do this task.  In case you are
uncertain of the meaning of a configuration parameter you should
consult the config(5) manual page for an explanation.

Note that modem commands must be specified exactly as they are to be
sent to the modem.  Note also that quote marks (") will not be displayed
and will automatically be deleted.  You can use this facility to supply
null parameters as "".

Finally, beware that the set of parameters is long.  If you prefer to
use your favorite editor instead of this script you should fill things
in here as best you can and then edit the configuration file

"/var/spool/hylafax/etc/config.ttyIAX0"

after completing this procedure.

Command to enter Class 1 [AT+FCLASS=1.0]?
Command to stop and wait prior to sending PPM [AT+FTS=7]?
Command to stop and wait prior to sending TCF [AT+FTS=7]?
Command to stop and wait prior to sending EOP [AT+FTS=9]?
Extra bytes in a received HDLC frame [4]?
Maximum time to wait for OK after aborting a receive (ms) [200]?
Maximum wait for initial identification frame (ms) [40000]?
Command to ensure silence after receiving HDLC and before sending [AT+FRS=7]?

The modem configuration parameters are:

Class1Cmd:              AT+FCLASS=1.0
Class1PPMWaitCmd:       AT+FTS=7
Class1TCFWaitCmd:       AT+FTS=7
Class1EOPWaitCmd:       AT+FTS=9
Class1FrameOverhead:    4
Class1RecvAbortOK:      200
Class1RecvIdentTimer:   40000
Class1SwitchingCmd:     AT+FRS=7
Class1TCFMaxNonZero:    10
Class1TCFMinRun:        1000

Are these ok [yes]?

Creating new configuration file /var/spool/hylafax/etc/config.ttyIAX0...
Creating fifo /var/spool/hylafax/FIFO.ttyIAX0 for faxgetty... done.
Done setting up the modem configuration.

Checking /var/spool/hylafax/etc/config for consistency...
...everything looks ok; leaving existing file unchanged.

Don't forget to restart hylafax in order to run faxgetty on this new modem
line.
/var/spool/hylafax/config
Do you want to run faxaddmodem to configure another modem [yes]? no

You do not appear to be using faxgetty to notify the HylaFAX scheduler
about new modems and/or their status.  This means that you must use the
faxmodem program to inform the new faxq process about the modems you
want to have scheduled by HylaFAX.  Beware that if you have modems that
require non-default capabilities specified to faxmodem then you should
read faxmodem(8) manual page and do this work yourself (since this
script is not intelligent enough to automatically figure out the modem
capabilities and supply the appropriate arguments).

Should I run faxmodem for each configured modem [yes]?
/usr/sbin/faxmodem ttyIAX0

Done verifying system setup.
/var/spool/hylafax

cd /usr/src
wget http://downloads.sourceforge.net/project/avantfax/avantfax-3.3.5.tgz
tar -xzvf avantfax-3.3.5.tgz
rm avantfax-3.3.5.tgz
cd avantfax-3.3.5/
vi debian-prefs.txt

ROOTMYSQLPWD=[your DB root pw]
HTTPDUSER=asterisk
HTTPDGROUP=asterisk

./debian-install.sh
mv /etc/apache2/sites-enabled/000-default /etc/apache2/sites-available/002-avatfax.conf
vi /etc/apache2/sites-available/002-avatfax.conf

<VirtualHost *:80>
    DocumentRoot /var/www/avantfax
    ServerName my.faxdomain.com
    ErrorLog ${APACHE_LOG_DIR}/avantfax-error_log
    CustomLog ${APACHE_LOG_DIR}/avantfax-access_log common
    <Directory "/var/www/avantfax">
      AllowOverride All
    <Directory>
</VirtualHost>

a2ensite 002-avatfax
service apache2 reload
 
faxadduser -p changepasswd fax

5) Enable and install tesseract OCR for avantfax

apt-get install tesseract-ocr tesseract-ocr-deu tesseract-ocr-deu-frak tesseract-ocr-eng tesseract-ocr-fra
vi /var/www/avantfax/includes/local_config.php

define('ENABLE_OCR_SUPPORT', true);

With these simple steps, I was able to get FreePBX running with Hylafax and Avantfax web interfae.

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