Code: PIAF Installed Version = 2.0.6.5 under.VMWARE. FreePBX Version = 2.11.0.11 Running Asterisk Version = 11.6.0 Asterisk Source Version = 11.6.0 Dahdi Source Version = 2.7.0.2 Libpri Source Version = 1.4.14 Operating System = CentOS release 6.5 (Final) Kernel Version = 2.6.32-431.1.2.0.1.el6.i686 - 32 Bit And my silly old fax no longer works, It really bugs my doctor as he doesn't have email yet. And I'd rather fix the darn fax than change doctors, but thanks for the suggestion. To my timing, I can't detect the fax detect time on when dialing in, it seems to ring straight away. Incoming calls go straight to a ring group which rings all extensions, but not the fax. Please see the next post for an incoming fax call trace.
Thanks, mark. Hey Ross, Thanks for the heads up, the only place you can set a FAX extension (nowdays) is in incoming routes I guess. It used to be in general config but the default fax extension has long gone. As it turns out, it was my testing methodology that was broken.
I was dialing in on 7777 with a second fax machine to test the fax detection. Once I installed incrediblefax11 (thx #1 nerd) I was able to accelerate my 'suck it and see' testing rate until eventually, I tried sending AvantFAX out to PSTN and back in through another line and it all worked as expected. Perhaps the fact that there isn't a DID for 'simulate incoming call' threw fax detection off, I don't know, but happy it works now! Well except for the occasional hiccup where the fax isn't detected on the POTS lines but its good enough for me. Note: I do have a default route in too with fax detect enabled.
Thanks anyway mark I must drop a line to the devs about incrediblefax11 not checking for ghostscript fonts being installed which causes a rather cryptic message when trying to send a PDF with AvantFAX. ' Problem sending the fax.: rejected. Page has no /MediaBox attribute. Using the current page size. Hi Ward, Apologies for slow response as I crashed for a couple of days.
Okay there were a couple of things wrong with the incrediblefax11.sh install process. The first is there are a number of missing ghostscript fonts that will come back and kick you in the bun when you try to send a PDF as a fax. The error message is 'Problem sending the fax.: rejected. Page has no /MediaBox attribute. Using the current page size. ' Unfortunately, the logs detailing the problem have rolled over already.
What I did to fix it. Code: cd /usr/src wget tar -xvf ghostscript-9.07.tar.gz cd ghostscript-9.07./configure make make install ldconfig Once rebooted I was able to send PDF faxes until my heart was content. The second issue was to do with the ability to send faxes at all: the error message is ' sendfax: Password:Login failed: 500 'PASS ': Syntax error, expecting password.' It is actually documented in this thread: easily fixed by moving the localhost & 127.0.0.1 line to the top of /var/spool/hylafax/etc/hosts.hfaxd Third and lastly, cron emails root every hour because of a missing file in the sysconfig directory, I have documented it here: Thanks Ward, you are incredible! May I suggest installing perl-YAML as a matter of course so that the auto cpan stuff goes smoothly?
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In version 13+ of the PBX GUI software, visit the module to enable faxing for a user. Fax settings for recipients are no longer found in the Extensions module.
After you have enabled fax for a user, you can select the user as a Fax Recipient in the module. How do I get to the Fax Configuration Module?. In the top menu click Settings. Digital wireless camera driver.
In the drop down menu click Fax Configuration Settings Default Fax Header Header information that is passed to remote side of the fax transmission and is printed on top of every page. This usually contains the name of the person or entity sending the fax.
Default Local Station Identifier The outgoing Fax Machine Identifier. This is usually your fax number. Outgoing Email address Email address that faxes appear to come from if 'system default' has been chosen as the default fax extension. Ing strategy guides. Email address Email address that faxes are sent to when using the 'Dial System Fax' feature code. This is also the default email for fax detection in legacy mode, if there are routes still running in this mode that do not have email addresses specified. Error Correction Mode Yes/No: Whether to use Error Correction Mode (ECM) Maximum transfer rate Maximum transfer rate used during fax rate negotiation.
Minimum transfer rate Minimum transfer rate used during fax rate negotiation. Default Paper Size Letter/A4: The default paper size. This specifies the size that should be used if the document does not specify a size. If the document does specify a size, that size will be used.
Save After making changes, click the Submit button and then click the Apply Config button.
I'm setting up a virtual fax on Elastix box. Elastix have this built-in Hylafax and iaxmodem so what's left to do is just create an IAX2 extension, set the route and create virtual fax on 'Fax Tab' on the elastix web GUI.
However, I can't receive nor send fax. Here's what I get from the fax viewer: Different messages for sending fax: 1. Re-queued: No answer (T.30 T1 timeout) 2. Failed: Busy signal detected; too many attempts to dial 3.
Failed: Failure to train remote modem at 2400 bps or minimum speed; too many attempts to send message on fax viewer when receiving fax 1. Requeued: No answer from remote.
Tried diff guides but same results. If i call the fax ext i created, i can hear it ring, asterisk -r console show call, and virtual fax list displays: receiving facsimile.
I need help to get the virtual fax working. Yeah I think it's missed.
Thanks for noticing Scott! Unfortunately it's not yet solved. Yesterday I called my ISP if they support t.38 and they say yes. We have some fax testing and they noticed that I have a different header format. They advised me to configure my header format using domain name instead of using IP. The problem is, Im not too sure how can I change the header format on the Elastix box. And If I change it, would affect the Voip service we are currently running live?
I was advised to change the header format to something like below for the fax to work: INVITE sip: SIP/2.0 From: 'Prod';tag=sbc0508sbcthLNQZ4HL6VcH6B Thanks! Daynobot wrote: yeah I think it's missed.
Thanks for noticing Scott! Unfortunately it's not yet solved. Yesterday I called my ISP if they support t.38 and they say yes. We have some fax testing and they noticed that I have a different header format. They advised me to configure my header format using domain name instead of using IP. The problem is, Im not too sure how can I change the header format on the Elastix box.
And If I change it, would affect the Voip service we are currently running live? I was advised to change the header format to something like below for the fax to work: INVITE sip: SIP/2.0 From: 'Prod';tag=sbc0508sbcthLNQZ4HL6VcH6B Thanks! You need to get into embedded FreePBX to change the fax header. You may or may not see this option on the PBX menu inside Elastix. I can't remember if it just does not show up as an option or just won't let you in if you do not have it enabled. To enable access to embedded FreePBX, go to Security - Advanced Settings. You will see the option to enabled direct access to FreePBX.
You can turn it on and set the admin password. Then go back to the PBX menu - unembedded FreePBX. Login as user admin and the password you just set. Once inside FreePBX, click the Setup tab on the left-hand side, and go to Fax Configuration. Once you reach this menu, you will see a field where you can edit the default fax header. Try making the changes your ISP recommended, click Submit, and Apply the changes. Then send a test fax outbound / try sending one inbound to see if it works.
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I've not heard of anyone having to do this, so good luck to you. I tried your instructions, going into FreePBX and changed the fax header in Fax config.
However i still cannot do inbound and outbound fax. The weird thing is, i try creating another fax extension (ext 420), but when I call that extension, it says 'the number you dialed does not exist'. I setup the ext exactly the same as the one Im working with (ext 401), and when I call the ext 401, it rings, and FAX gui tab displays: Receiving facsimile on ttyIAX1. Can you please take a look at the attached asterisk cli if something's wrong?
Thank you the log is taken when sending a fax to 68205150. Hi buddy, unfortunately I haven't found a solution yet and then I stopped working on it to do some urgent tasks. Now I'm getting back into it, do you have any progress so far? For everyone's update: I called our SIP provider and did a testing on T-38 codec. Here's their finding and I haven't responded to them so far: 1) Problem: incoming & outgoing fax issue Findings: For fax, StarHub send RE-INVITE with T38/G711 codec due to codec negotiation &your end return back ‘488 Not acceptable here’ to StarHub. The handshaking of the fax failed due to codec negotiation failed.
![Elastix Notice No Fax License Detected Elastix Notice No Fax License Detected](/uploads/1/2/3/7/123740254/193782412.png)
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That’s why incoming & outgoing fax failed with the same result, release cause=488 not acceptable here. Resolution: you are using internet fax & your network is using codec T.30 as what you have verified. Please assist to check on your end. Can you please help me understand this correctly? I don't have T.38? Regards, Deno.
Daynobot, As far as I know, the HylaFAX & IAXModem in Elastix is most successful when used with an analog PCI TDM card (Sangoma or Digium) and a real telephone line. If you must fax over SIP using G.711 (uLaw or aLaw), it will usually only be acceptably reliable when the SIP happens only on the local LAN, where there is no packet loss, and low jitter. Even if your provider did support T.38, I don't think HylaFAX & IAXModem in Elastix do. A lot of ATAs like the Grandstream Handytones and Cisco SPA 112 support T.38 though, so maybe HylaFAX doesn't have to. If you connected one of these ATAs up to a SIP service provider who does support T.38, maybe HylaFAX could just think it's connected to a POTS line (provided by the ATA). I think it might also be possible to use T38Modem to add T.38 support to the HylaFAX in Elastix, but that might break the Elastix/IAXmodem setup.
So I installed and configured FreePbx 2.7.0.1 and Asterisk 1.6.2.2 on Ubuntu 9.10 for my parents recently. I have a trixbox running at home and am using what FreeBDS call legacy fax support for fax to email and it works great for me however i am unable to get this working for them so i decided to try Fax For Asterisk.
Voipserver.CLI module load resfax.so Unable to load module resfax.so Command ‘module load resfax.so’ failed. Voipserver.CLI module load resfaxdigium.so Unable to load module resfaxdigium.so Command ‘module load resfaxdigium.so’ failed. Asterisk Ver.
1.6.2.2 and i installed these 2 for fax in the readme the benchfax would not run so i chose generic as im on an atom based comp and that wasnt an option in at resfax: resfax-1.6.2.01.1.6-x8632.tar.gz resfaxdigium: resfaxdigium-1.6.2.01.1.6-generic32.tar.gz. Ok so it now knows it licensed i started allover again and this time it just worked! Thank you so much for your help!
However how do i detect incoming faxes with it? On my trixbox im using the nvfax and it has worked well for me however in FreePBX this options is greyed out so that leaves me with zaptel or sip i made a virtual extension and set fax detect to send to there i then set the virtual extension to detect faxes and email me but it does not seem to detect at all if i watch in the CLI it always gets sent to my ring all group. Jdetmold, can you provide the output of the following CLI command (or it’s appropriate equivalent depending on what Asterisk version your are using): show modules like fax I’d like to see what your nv fax module looks like in that listing to see if we are not detecting nvfax properly. The code is suppose to detect it and only show it as an option if you have it installed. (In the past, it presented the option always which would lead to hung up calls if it was configured where there was no nv fax installed on a system).
Incoming Fax Handling Received faxes are commonly encoded in Tagged Image File Format (TIFF). This graphics file format, while not as well known as JPEG or GIF, is not as obscure as one might think. In fact, we suspect your computer (whether you’re running Windows, Linux, or MacOS) will already have the ability to interpret TIFF files built in. While it has become popular to offer PDF as a delivery format for received faxes, we’re not sure this is strictly required, since TIFF is so ubiquitous. Received faxes will be stored by Asterisk as files. Where those files are stored will depend on several factors, including. What software you are using to simulate a fax modem (e.g., IAXmodem, Digium ReceiveFAX, etc.).
The location in your filesystem that you have configured for storage of received faxes. Any post-receipt processing you have decided to perform on the files In the dialplan, you will need to build in enough intelligence to name faxes in such a way that they will be distinct from each other.
There are many channel variables and functions that can be used for this purpose, such as the STRFTIME function. Asterisk can easily handle capturing the fax to a file, but you will need to make sense out of what happens to that file once it is stored on the system. Fax to TIFF The Tagged Image File Format is not very well known, but it is actually more common than you might realize, and since it is natively supported on Windows, MacOS, and Linux, TIFF files can be viewed on pretty much any computer with the most basic graphics viewer. A subset of the TIFF file format has for a long time been the de facto file format used for faxes. Since Asterisk will receive and store faxes in TIFF format, there is no post-processing required.
Once the incoming fax call has been completed, the resulting TIFF file can be opened directly from the folder where it was stored (or perhaps emailed to the intended user). Fax Detection You may have a dedicated phone number for receiving faxes. However, with Asterisk, that is not a requirement. Asterisk has the ability to detect that an incoming call is a fax and can handle it differently in the dialplan.
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Fax detection is available for both DAHDI and SIP channels. To enable it for DAHDI, set the faxdetect option in /etc/asterisk/chandahdi.conf. In most cases, you should set this option to incoming. Lists the possible values for the faxdetect option in chandahdi.conf. Value Description incoming Enables fax detection on inbound calls.
When a fax is detected, applies the faxbuffers option if it has been set and redirects the call to the fax extension in the dialplan. For more information on the faxbuffers option, see. Outgoing Enables fax detection on outbound calls.
The dialplan is not executing on an outbound channel. If a fax is detected, the faxbuffers option will be applied and the channel will be redirected and start executing the dialplan at the fax extension. Both Enables fax detection for both incoming and outgoing calls.
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No Disables fax detection. This is the default. To enable fax detection for SIP calls, you must set the faxdetect option in /etc/asterisk/sip.conf. This option may be set in the general section, or for a specific peer.
Covers the possible values for the faxdetect option in sip.conf.