Displaying 20 results from an estimated 900 matches similar to: "Fax buffer overflow detected"
2013 Jun 02
1
Asterisk T.38 Pass-Through doesn't work
What I have is:
* Asterisk 1.8.10.1~dfsg-1ubuntu1,
* SPA112 ATA with analog fax in 1-st FXS port connected,
* SIP trunk with provider supporting T.38.
My network looks like this:
* spa112 (192.168.33.200/24) and Asterisk (192.168.5.253/24) in
neighbouring LANs,
* Asterisk connects to the provider (80.75.130.136) via router
(82.200.7.184). Router has full DNAT to Asterisk server.
What happens?
2009 Dec 10
1
Asterisk 1.6.1.11 Fax
Hello,
We're trying to receive faxes on the Asterisk server, but for the time
being T.38 negotiation fails.
The SDP that the Asterisk reINVITE sends contains these lines:
----------------------
m=image 4968 udptl t38
a=T38FaxVersion:0
a=T38MaxBitRate:9600
a=T38FaxFillBitRemoval
a=T38FaxTranscodingMMR
a=T38FaxTranscodingJBIG
a=T38FaxRateManagement:transferredTCF
a=T38FaxMaxDatagram:1400
2013 Jan 15
4
Getting UDPTL (SIP): Transmission error: Resource temporarily unavailable
Hi,
I configured Asterisk 10 for inbound fax, for couple of weeks I didn't see
any issues until today. The setup I configured for inbound fax is quite
simple i.e. Cisco Voice GW sends the fax calls to Asterisk using T.38
protocol and later Asterisk stores/forwards the fax to specific end user.
The configuration I made in sip.conf for enabling T38 is listed below;
t38pt_udptl =
2017 Jun 16
3
asterisk 13.16 / pjsip / t.38: res_pjsip_t38.c:207 t38_automatic_reject: Automatically rejecting T.38 request on channel 'PJSIP/91-00000007'
On Fri, Jun 16, 2017, at 10:49 AM, Michael Maier wrote:
<snip>
>
> t38modem and asterisk are using
>
> m=image 35622 udptl t38
> ^^^^^
>
> Provider uses
>
> m=image 35622 UDPTL t38
> ^^^^^
>
> Could this be a problem? If I'm sending internal only, it's always
> lowercase.
Looking at the tests we have we
2013 Nov 20
5
Movistar sip Mexico
Hello,
I have a problem with movistar in Mexico with a sip calls. Movistar send to
me T38 and G729 in the INVITE and they say that I have to ignore T38 and
use G729 in the voice call.
When a fax call is made Movistar send only T38 in the INVITE.
Invite example:
v=0
o=GDL-BMSW-12D 19913379 19899826 IN IP4 192.168.1.2
s=sip call
c=IN IP4 192.168.1.2
t=0 0
m=audio 6370 RTP/AVP 18 101
a=fmtp:18
2009 May 27
2
problem with T.38 media headers
Hi Guys,
Something I have noticed while dealing with T.38 and re-invites in Asterisk 1.4.22.
I have a provider who re-invites with the following sdp (message flow
PROVIDER_EQPMT -> ASTERISK):
"""
.
v=0.
o=SIP_5F9 123456 654322 IN IP4 CONN_IP_PROVIDER.
s=-.
c=IN IP4 CONN_IP_PROVIDER.
t=0 0.
m=audio 0 RTP/AVP 0.
m=image 26858 udptl t38.
a=T38FaxMaxBuffer:288.
2009 Dec 03
3
Fax throughput - Asterisk 1.6.1.9
Hello,
We are trying to send faxes by T.38 protocol to a remote SIP proxy from
a local extension. The local extension sends the INVITE, Asterisk sends
the call to the Proxy the call is connected with a regular audio codec.
After a few seconds the remote proxy sends an INVITE with UDPTL and the
Asterisk sends it to the local extension and it's accepted, but (here
the problem starts) just
2016 Nov 11
2
iaxmodem errors.
2017 Jun 05
3
asterisk 13.16 / pjsip / t.38: res_pjsip_t38.c:207 t38_automatic_reject: Automatically rejecting T.38 request on channel 'PJSIP/91-00000007'
On Mon, Jun 5, 2017, at 04:26 PM, Michael Maier wrote:
> On 06/05/2017 at 06:29 PM, Joshua Colp wrote:
> > On Mon, Jun 5, 2017, at 01:22 PM, Michael Maier wrote:
> >>
> >> Do you have any idea where to start to look at? Adding additional output
> >> in the source code? Which functions could be interesting? I may add own
> >> debug code to see why things
2014 Jan 21
0
Unknown problem sending outbound fax
All;
I'm having a problem sending an outbound fax using Asterisk-1.8.15-cert3
and the spandsp fax module using a SIP trunk. I'm seeing hundreds of these:
ERROR[14423]: udptl.c:294 encode_open_type: UDPTL
(SIP/runcentral_outbound-00000074): Buffer overflow detected (59 + 134 >
175)
Has anyone ever seen this before? I have the following configuration.
udptl.conf:
2017 Jun 14
2
asterisk 13.16 / pjsip / t.38: res_pjsip_t38.c:207 t38_automatic_reject: Automatically rejecting T.38 request on channel 'PJSIP/91-00000007'
On 06/14/2017 at 05:53 PM Joshua Colp wrote:
> On Wed, Jun 14, 2017, at 12:47 PM, Michael Maier wrote:
>
> <snip>
>
>>
>> I added this patch to see, if really all packages are are freed after
>> they have been processed:
>>
>> --- b/res/res_pjsip/pjsip_distributor.c 2017-05-30 19:44:16.000000000
>> +0200
>> +++
2006 Nov 20
1
T.38 - By reinvitation only?
Hi All,
Excited to see mention of T.38 passthru with 1.4.0....
BUT it seems like "Emperor's New Clothes" from my perspective.
As I understand it, T.38 passthru only works via a re-invite mechanism -
so two T.38 devices try talking fax and request a T.38 media stream.
Asterisk is now savvy enough to realise it can't do it, so opts out -
"Hey Guys, I don't know
2009 Dec 23
4
Asterisk and Faxing
Hi All
I have been looking around and haven not been able to find a working example
I have a fresh/new install of Asterisk 1.6.2.0 with dahdi 2.2.1 and libpri 1.4.10.2
I use a sangoma A200 card so I am using wanpipe 3.4.7
If I use zaptel which I read I need for app_rxfax then asterisk crashes with segfaults on startup
asterisk[2624]: segfault at 30353466 ip b7eb538b sp bffda26c error 4 in
2011 Aug 01
2
T38 Fax
Anyone have any testing experience with T38 and HT-502 Grandstream?
I just want to confirm that t.38 is working on this device.
Thanks
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2017 Jun 15
2
asterisk 13.16 / pjsip / t.38: res_pjsip_t38.c:207 t38_automatic_reject: Automatically rejecting T.38 request on channel 'PJSIP/91-00000007'
On 06/14/2017 at 10:17 PM, Joshua Colp wrote:
> On Wed, Jun 14, 2017, at 05:09 PM, Michael Maier wrote:
>
> <snip>
>
>>
>> I can now say, that asterisk / pjsip seams to work *mostly* as expected.
>> Just one exception - and that's the package in question, which can't be
>> seen in tcpdump.
>>
>> I extended the above patch by adding
2010 May 06
1
T.38 Fax With Flowroute SIP Provider
Does anybody have T.38 faxing working with Flowroute? I am running
Asterisk 1.6.2.7-rc3 with spandsp 0.0.6-pre17. I can successfully
receive faxes over ulaw. I enabled T.38 with t38pt_udptl=yes in
sip.conf. When I receive a fax it tries to negotiate T.38 and
Flowroute sends back a Bad Request response saying I have a SIP syntax
error.
Flowroute support is recommending that I try again after
2011 Oct 06
3
Digium FFA + Gafachi T38 outgoing issues
Hi, folks.
I'm having a heck of a time trying to get outgoing T38 faxing (I don't
need inbound right now) working with FFA and Gafachi. G711 faxing works
(as well as can be expected over the internet), but I want the higher
reliability of T38.
I'm running Asterisk 10-beta1.
When I drop my callfile in to make the call, I get this:
-- Attempting call on SIP/18884732963 at
2013 Jan 10
1
Segmentation fault after upgrading from asterisk-10.5.0 to asterisk-11.1.2
After upgrading from asterisk-10.5.0 to asterisk-11.1.2, I am getting a Segmentation fault.
[root at localhost asterisk-11.1.2]# asterisk -vvvvvvc
Asterisk 11.1.2, Copyright (C) 1999 - 2012 Digium, Inc. and others.
Created by Mark Spencer <markster at digium.com>
Asterisk comes with ABSOLUTELY NO WARRANTY; type 'core show warranty' for details.
This is free software, with components
2016 Nov 15
2
iaxmodem errors.
2014 Dec 11
6
T.38 not working - help needed with log interpretation
Hello,
at first, thanks for helping!
In the meantime, I have done a lot of research and trial and error, and I could solve that specific problem. Obviously, the dialplan application "Answer" was playing a key role here. My original dialplan snippet (which produced that problem) was:
exten => _00., 1, NoOp()
same => n, Set(FAXOPT(gateway)=yes)
same => n,