Displaying 20 results from an estimated 5000 matches similar to: "T.38 Gateway"
2014 Oct 14
1
debugging T.38 issues
Hello list,
We're currently facing some issues concerning T.38 gateway faxing.
This is a device used almost exclusively for receiving faxes. Calls
are incoming to asterisk on a SIP trunk (sangoma netborder) using
G711A. Gateway mode is activated in the asterisk dialplan towards a
Cisco SPA 112 running firmware 1.3.5. We are using asterisk 1.8.13.0
with the T.38 gateway patch applied (I know I
2012 Jan 05
1
Where are the fax instructions?
Hello,
Trying to set up res_fax_spandsp. Based on
https://wiki.asterisk.org/wiki/display/AST/T.38+Fax+Gateway I wrote this in
my extensions.conf:
exten => 306,1,NoOp(Fax transmission)
same => n,Set(FAXOPT(gateway)=yes)
same => n,Dial(DAHDI/3) ----->FXS port to fax machine
same => n,Hangup()
Call flow Im trying to pull out is as follows:
Zoiper -->
2011 Jan 24
6
ReceiveFAX issue.
I am testing out inbound faxing using res_fax and res_fax_spandsp.so
My system answers the call but then sets there on the ReseiveFax line then
comes back with an error that it exceeded the maximum retries.
How would I go about debugging this? Below is my very simple dialplan code
I am using, and the fax show version gives the following as well.
FAX For Asterisk Components:
2012 Jul 18
1
Asterisk 1.8.13 / res_fax / res_fax_digium
We are using res_fax_digium with a Sangoma PRI card on asterisk 1.8.13
The docs at http://docs.digium.com/FAX/fax_for_asterisk_admin_manual.pdf indicate v34 is supported, but when I enable it I get the message "res_fax_digium.c:1624 dgm_fax_new: V.34 not supported, will be ignored." Is v34 only supported with SpanDSP?
Also, the res_fax.conf.sample does not indicate v34 as a valid
2011 Jan 19
15
res_fax
I am working on some fax tools for some of my users. I am reading the
https://wiki.asterisk.org docs for faxing.
Is see Application_SendFax and Application_SendeFax has one been
discondinued? Any feed back on using the res_fax module would be
apperciated. Any examples or other.
Thanks
Bryant
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2015 Jan 01
2
PJSIP / T.38 - Asterisk not passing on v21 preamble and data
Dear list,
happy new year!
I am still trying to make T.38 work. In the meantime, I have upgraded to Asterisk 13.1.0, and I am using the most recent PJSIP library (compiling that stuff myself). My local fax software is capable of T.38, as is my ITSP; Asterisk sits in the middle, of course. Asterisk is in the same private subnet as the local fax software and talks to the ITSP through a NAT'd
2009 Jul 16
1
Sending faxes with T.38 problem. Fax for Asterisk (no SpanDSP) - 1.6.1.1
I am testing Fax for Asterisk. But, I meet a problem. I try to Send a Fax (.tiff) from the first
asterisk (Asterisk1) to the second asterisk (Asterisk2). Asterisk1 initiates an INVITE with audio G.711. Asterisk2
accepts this INVITE. Immediately, Asterisk2 sends an re-INVITE with T.38 to Asterisk1. But, Asterisk1 responds with
"488 not acceptable here". I double check t38pt_udptl = yes in
2010 Jul 29
3
T.38 fax between ATA's and Asterisk and Cisco PGW 2200
To provide a reliable fax solution for users connected to a Asterisk 1.6.2.6 server i have tested a few T.38 capable ATA's:
- Patton M-ATA
- Grandstream HandyTone 486
- Fritz!Box 7170
I have tried Asterisk 1.6.2.6 compiled with SpanDSP-0.0.6pre17 and also Asterisk 1.6.2.6 with Fax for Asterisk installed.
These Asterisk servers are connected to a Cisco PGW 2200 + AS5400XM.
Sending fax
2009 May 20
2
Problems receiving some faxes in T.38
Hello,
We have been working with the ReceiveFax application for some weeks now in
order to receive faxes in T.38 and it works fairly well, but there are some
faxes that for some reason we are not able to receive correctly.
The asterisk version we are using is 1.6.0.6 with spandsp-0.0.5pre4 and the
asterisk machine is behind a CISCO mediaGW to be able to communicate with
the PSTN.
The SIP call
2015 Jan 06
0
PJSIP / T.38 - Asterisk not passing on v21 preamble and data
Hi,
On Thu, Jan 1, 2015 at 7:09 PM, Recursive <lists at binarus.de> wrote:
> 1) Did anybody test T.38 with SPANDSP? If yes, which version of SPANDSP did you use? Mine is 0.0.6 PRE 20. Should I try to upgrade to PRE 21? Or to one of the snapshots?
I remember that I was having issues with an older libspandsp library.
I simply upgraded to the latest available version which made the issue
2010 Jan 04
1
Free FaxForAsterisk ReceiveFAX not working
Hello users,
Recently i have installed the free version of FaxForAsterisk and trying to
work with it by sending a fax
on T38.
My version information is as follows
i)Asterisk 1.6.0.20
ii)res_fax-1.6.0.14_1.1.6-x86_32
iii)res_fax_digium-1.6.0.14_1.1.6-i686_32
sip.conf
[general]
t38pt_udptl=yes
extensions.conf
[default]
exten => _XXXXXXXXXX,1,NoOp(Fax Incoming Call)
exten =>
2014 Oct 22
2
res_fax T.38 Gateway with SpanDSP - Force ReINVITE?
Greetings-
Working with the T.38 gateway functionality that is sparsely documented [1] , I'm attempting to get the following functional:
Asterisk calling system -> Asterisk system in T.38 Gateway Mode (box in question) -> SIP Provider
The problem is:
-The provider is not initiating a reinvite to T.38, even though it is 100% supported
-Asterisk is not detecting the CNG tones from
2010 Feb 05
6
Still on spandsp/app_fax and T.38
This message is pointed directly to Steve Underwood. I tought it would not be nice to directly email him with a question that interests a good part of the Asterisk community, so here it is. :)
Steve, remember a few days ago when we discussed about issues on Asterisk 1.6.1.13 and T.38 fax reception? Well I opened an issue on Mantis (https://issues.asterisk.org/view.php?id=16756) and turns out it
2016 Nov 29
3
FAX CNG detected but no fax extension
Hello,
I have a question regarding incoming fax to local file (on the Asterisk server).
While the fax is received properly (I have the tiff file generated as expected) I get the warning 'FAX CNG detected but no fax extension' on the consol.
If the fax is received ok then what 'fax extension' does it expect and what should I do there?
My Setup:
Sender -> Public PSTN ->
2011 Apr 08
0
488 error in T38 Gatewaying in Asterisk 1.8 with patch 13405
Hello List,
I have been trying to setup T38 gatewaying with the following setup
SIP ->Asterisk -> DAHDI TE410P with Libss7 -> TELCO
I'm using asterisk Asterisk 1.8.3.2 and DAHDI Version: SVN-trunk-r9697M Echo
Canceller: HWEC
I'm aware there's no support for T38 gateway but I have been trying to get
the patches https://issues.asterisk.org/view.php?id=13405 to work. It seems
2011 Feb 03
2
T.38 negotiation error
Hi, I have asterisk 1.6.2.6 on a Debian Lenny system.
When I try to send a fax in T.38 mode I receive this error
ERROR[15035]: res_fax.c:795 set_fax_t38_caps: channel
'SIP/eutelia-sirio-out-00000000' is in an unsupported T.38 negotiation
state, cannot continue.
In my sip.config general section I have added this lines
t38pt_udptl=yes
t38pt_rtp=no
t38pt_tcp=no
If I comment this lines,
2010 Aug 24
1
asterisk-1.8.0-beta4 - compile error
Hi,
I tried to compile asterisk-1.8.0-beta4 but after ./configure && make
I've got following error:
[CC] res_fax.c -> res_fax.o
[LD] res_fax.o -> res_fax.so
[CC] res_fax_spandsp.c -> res_fax_spandsp.o
res_fax_spandsp.c:117: error: field ?fax_state? has incomplete type
res_fax_spandsp.c:118: error: field ?t38_state? has incomplete type
res_fax_spandsp.c: In function
2010 May 12
3
Asterisk core dumping on SendFax with FFA
Hi All,
I seem to have stumbled on a bit of a problem. When trying to send a fax
with Fax For Asterisk on 1.6.2.x (have tried 1.6.2.5, 1.6.2.7 and the
current svn version, with FFA 1.2 I get a core dump each time.
Here is an extract form the console:
[May 12 22:47:09] DEBUG[22584]: app_queue.c:1084 handle_statechange:
Device 'SIP/vltb-sbc01' changed to state '1' (Not in use)
2011 Jan 11
2
asterisk fax problem
Hello,
I have asterisk 1.6.2.9-2
I tried to install fax utility as it is shown on pdf documents on asterisk
site.
I downloaded Opteron compiled res_fax and res_fax_digium files and copied to
/usr/lib/asterisk/modules/ where default modules directory is.
I created a free fax license and created license file on asterisk server too.
WHen i run asterisk it crashed.
I noticed that if res_fax.so
2011 Mar 14
1
sip show channel and t.38
Hello
using asterisk 1.8, compiled res_fax.so and res_fax_spandsp.so - both
loaded successfuly
in sip.conf set t38pt_udptl=yes
but faxes still don't work even in passthru mode.
if i do a 'sip show channel' on the channel via which i am sending fax it shows:
T.38 support Yes
however if i do sip show channel of my channel (from other server) it shows
T.38 support