Displaying 20 results from an estimated 21 matches for "t38faxmaxbuff".
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t38faxmaxbuffer
2010 May 25
2
Little t38 bug?
...ices and the result is always the same.
Patton ignores the parameter and sends the fax at 9600.
Grandstream doesn't, and all the faxes are going in and out at 2400.
Looking at the code I found this in chan_sip.c (line 7736):
if ((sscanf(a, "T38FaxMaxBuffer:%30u", &x) == 1)) {
ast_debug(3, "MaxBufferSize:%d\n", x);
found = TRUE;
} else if ((sscanf(a, "T38MaxBitRate:%30u", &x) == 1) || (sscanf(a, "T38FaxMaxRate:%30u", &x) == 1)) {
ast_debug(3, "...
2009 May 27
2
problem with T.38 media headers
...nd 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.
a=T38FaxRateManagement:transferredTCF.
a=T38FaxUdpEC:t38UDPRedundancy.
"""
The answer coming from asterisk in this case is:
"""
.
v=0.
o=root 3484 3485 IN IP4 CONN_IP_ASTERISK.
s=session.
c=IN IP4 CONN_IP_ASTERISK.
t=0 0.
m=image 4653 udptl t38.
a=T38FaxVersio...
2013 Nov 20
5
Movistar sip Mexico
...istar 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 annexb=yes
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=ptime:20
m=image 6372 udptl t38
a=T38FaxVersion:0
a=T38FaxMaxBuffer:1100
a=T38FaxMaxDatagram:612
a=T38MaxBitRate:14400
a=T38FaxRateManagement:transferredTCF
a=T38FaxUdpEC:t38UDPRedundancy
How can I ignore T38 and use only G729 for this call?.
Thanks for your help.
Damian
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2007 Apr 24
0
ASA-2007-010: Two stack buffer overflows in SIP channel's T.38 SDP parsing code
...|
> | | |
> | |a=T38MaxBitRate:14400 |
> | | |
> | |a=T38FaxMaxBuffer:1024 |
> | | |
> | |a=T38FaxMaxDatagram:238 |
> | |...
2007 Apr 24
0
ASA-2007-010: Two stack buffer overflows in SIP channel's T.38 SDP parsing code
...|
> | | |
> | |a=T38MaxBitRate:14400 |
> | | |
> | |a=T38FaxMaxBuffer:1024 |
> | | |
> | |a=T38FaxMaxDatagram:238 |
> | |...
2013 Jan 04
0
T38MaxBitRate issue on fax passthrough
...iusFAX/7.0.0.298
Content-Type: application/sdp
Content-Length: 315
v=0
o=XMedius-Fax-Gateway 76811410 411 IN IP4 WWW.WWW.WWW.WWW
s=Asterisk PBX 10.5.0-digiumphones
c=IN IP4 WWW.WWW.WWW.WWW
t=0 0
m=image 54296 udptl t38
a=T38FaxVersion:0
a=T38maxBitRate:14400
a=T38FaxRateManagement:transferredTCF
a=T38FaxMaxBuffer:8192
a=T38FaxMaxDatagram:1008
a=T38FaxUdpEC:t38UDPRedundancy
<------------->
--- (11 headers 12 lines) ---
Sending to WWW.WWW.WWW.WWW:5060 (no NAT)
== Using UDPTL CoS mark 5
Got T.38 offer in SDP in dialog
176a274d5342aac505d0125979d19f62 at ZZZ.ZZZ.ZZZ.ZZZ:5060
Capabilities: us - (ulaw)...
2009 May 30
1
Problem T.38
...Content-Length: 365
v=0
o=root 577489170 577489172 IN IP4 XX.XX.XX.66
s=Asterisk PBX 1.6.0.5
c=IN IP4 XX.XX.XX.66
t=0 0
m=image 4729 udptl t38
a=T38FaxVersion:0
a=T38MaxBitRate:9600
a=T38FaxFillBitRemoval:0
a=T38FaxTranscodingMMR:0
a=T38FaxTranscodingJBIG:0
a=T38FaxRateManagement:transferredTCF
a=T38FaxMaxBuffer:400
a=T38FaxMaxDatagram:400
a=T38FaxUdpEC:t38UDPFEC
---
engeplus*CLI>
<--- SIP read from UDP://XX.XX.XX.67:1024 --->
SIP/2.0 100 Trying
From: sip:2007 at XX.XX.XX.66;tag=as46031e07
To: 2005618<sip:2005618 at XX.XX.XX.66>;tag=74tf2-7Q4xE0
Call-ID: CcD6S0-VFf0Z8f2 at XX.XX.XX.66
CSe...
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
2007 Jul 12
0
No subject
...axRateManagement:transferredTCF
a=T38FaxUdpEC:t38UDPRedundancy
And Asterisk responds with the 200 OK:
m=image 29475 udptl t38 [notice the m=image]
a=T38FaxVersion:0
a=T38FaxFillBitRemoval:0
a=T38FaxTranscodingMMR:0
a=T38FaxTranscodingJBIG:0
a=T38FaxRateManagement:transferredTCF
a=T38FaxMaxBuffer:400
a=T38FaxMaxDatagram:400
a=T38FaxUdpEC:t38UDPRedundancy
I've been corresponding with Dialogic engineering on the messaging and
they report that the gateway receiving m=image is not compatible or is
telling the gw to immediately setup the call at T38 with is not
compatible. The gateway wa...
2009 Dec 10
1
Asterisk 1.6.1.11 Fax
...to enable or disable UDP checksums on UDPTL traffic
;
;udptlchecksums=no
;
; The number of error correction entries in a UDPTL packet
;
udptlfecentries = 3
;
; The error correction type to be sent
;
;T38FaxUdpEC = t38UDPFEC
T38FaxUdpEC = t38UDPRedundancy
;
; The maximum length of a UDPTL packet
;
;T38FaxMaxBuffer = 200
T38FaxMaxDatagram = 400
VoipFaxMaxRate = 5
; The span over which parity is calculated for FEC in a UDPTL packet
;
udptlfecspan = 3
;
; Some VoIP providers will only accept an offer with an even-numbered
; UDPTL port. Set this option so that Asterisk will only attempt to use
; even-numbered...
2010 Oct 19
1
FFA SendFax rejects T.38 reINVITE (488 Not acceptable here)
...t-Length: 303
Content-Disposition: session; handling=required
Content-Type: application/sdp
v=0
o=Sonus_UAC 218 7126 IN IP4 xxx.xxx.xxx.xx8
s=SIP Media Capabilities
c=IN IP4 xxx.xxx.xxx.xx7
t=0 0
m=image 6202 udptl t38
a=T38FaxVersion:0
a=T38MaxBitRate:9600
a=T38FaxRateManagement:transferredTCF
a=T38FaxMaxBuffer:262
a=T38FaxMaxDatagram:176
a=T38FaxUdpEC:t38UDPRedundancy
a=sendrecv
<------------->
--- (16 headers 13 lines) ---
Sending to xxx.xxx.xxx.xx8 : 5060 (no NAT)
Got T.38 offer in SDP in dialog
74ca1e4e3e86a1b873428773477e201f at yyy.yyy.yyy.yyy
Capabilities: us - 0x102 (gsm|g729), peer - au...
2011 Apr 08
0
488 error in T38 Gatewaying in Asterisk 1.8 with patch 13405
...ptable here.
o=ZoiperCommunicator_user 0 1 IN IP4 192.168.1.60
s=ZoiperCommunicator_session
c=IN IP4 192.168.1.60
t=0 0
m=image 8000 udptl t38
a=T38FaxVersion:0
a=T38MaxBitRate:14400
a=T38FaxFillBitRemoval:0
a=T38FaxTranscodingMMR:0
a=T38FaxTranscodingJBIG:0
a=T38FaxRateManagement:transferredTCF
a=T38FaxMaxBuffer:400
a=T38FaxMaxDatagram:400
a=T38FaxUdpEC:t38UDPRedundancy
Asterisk returns
SIP/2.0 488 Not acceptable here
Via: SIP/2.0/UDP 192.168.1.60:53325
;branch=z9hG4bK-d8754z-35a890bc09845fb2-1---d8754z-;received=201.192.28.178;rport=53325
From: "robert"<sip:robert at 190.106.66.210;transp...
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
2009 Jul 16
1
Sending faxes with T.38 problem. Fax for Asterisk (no SpanDSP) - 1.6.1.1
...rted: replaces, timer..Content-Type: application/sdp..Content-L
ength: 288....v=0..o=root 2128364626 2128364627 IN IP4 209.167.0.151..s=Asterisk PBX 1.6.1.1..c=IN IP4 209.167.0.151..t=0 0..m=
image 4240 udptl t38..a=T38FaxVersion:0..a=T38MaxBitRate:9600..a=T38FaxRateManagement:transferredTCF..a=T38FaxMaxBuffer:400..a=
T38FaxMaxDatagram:400..a=T38FaxUdpEC:t38UDPFEC..
#
U 2009/07/15 22:30:12.141353 74.13.233.143:5060 -> 209.167.0.151:5060
SIP/2.0 100 Trying..Via: SIP/2.0/UDP 209.167.0.151:5060;branch=z9hG4bK00000000;rec...
2009 Mar 10
5
Sending faxes with T.38 problem. Asterisk - 1.6.0.6
...IBE, NOTIFY
Supported: replaces, timer
Content-Type: application/sdp
Content-Length: 290
v=0
o=root 525135648 525135648 IN IP4 192.168.222.160
s=Asterisk PBX 1.6.0.6
c=IN IP4 192.168.222.160
t=0 0
m=image 4222 udptl t38
a=T38FaxVersion:0
a=T38MaxBitRate:9600
a=T38FaxRateManagement:transferredTCF
a=T38FaxMaxBuffer:400
a=T38FaxMaxDatagram:400
a=T38FaxUdpEC:t38UDPFEC
#
U +0.015757 10.100.222.201:5060 -> 192.168.222.160:5060
SIP/2.0 488 Not Acceptable Media
Reason: Q.850;cause=65
Date: Tue, 10 Mar 2009 11:29:18 GMT
From: "22222" <sip:22222 at 192.168.222.160 <sip%3A22222 at 192.168.222.160...
2009 Nov 14
1
Asterisk with T38 Fax
...ontact: <sip:189.160.126.210:5060>
Content-Length: 295
Content-Type: application/sdp
v=0
o=HuaweiSoftX3000 31955175 31955177 IN IP4 189.160.126.210
s=Sip Call
c=IN IP4 189.160.126.210
t=0 0
m=image 13474 udptl t38
a=T38FaxVersion:0
a=T38MaxBitRate:9600
a=T38FaxRateManagement:transferredTCF
a=T38FaxMaxBuffer:176
a=T38FaxMaxDatagram:176
a=T38FaxUdpEC:t38UDPRedundancy
<------------->
[Nov 13 10:21:18] VERBOSE[25087] logger.c: --- (10 headers 12 lines) ---
[Nov 13 10:21:18] VERBOSE[25087] logger.c: Sending to 189.160.126.210 : 5060 (NAT)
[Nov 13 10:21:18] VERBOSE[25087] logger.c: Got T.38 offer i...
2010 May 12
3
Asterisk core dumping on SendFax with FFA
...7:15] DEBUG[22587]: chan_sip.c:8387 process_sdp: Processing
media-level (image) SDP a=T38MaxBitRate:9600... OK.
[May 12 22:47:15] DEBUG[22587]: chan_sip.c:8956 process_sdp_a_image:
MaxBufferSize:200
[May 12 22:47:15] DEBUG[22587]: chan_sip.c:8387 process_sdp: Processing
media-level (image) SDP a=T38FaxMaxBuffer:200... OK.
[May 12 22:47:15] DEBUG[22587]: chan_sip.c:8991 process_sdp_a_image:
FaxMaxDatagram: 72
[May 12 22:47:15] DEBUG[22587]: chan_sip.c:8387 process_sdp: Processing
media-level (image) SDP a=T38FaxMaxDatagram:72... OK.
[May 12 22:47:15] DEBUG[22587]: chan_sip.c:9028 process_sdp_a_image:...
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'
...,OPTIONS,BYE,CANCEL,SUBSCRIBE,NOTIFY,REFER,MESSAGE,INFO,PING,PRACK
Content-Length: 294
Content-Type: application/sdp
v=0
o=- 1497498234 3 IN IP4 192.168.10.33
s=T38Modem/3.15.2
c=IN IP4 192.168.10.33
t=0 0
m=image 10000 udptl t38
a=sendrecv
a=T38FaxVersion:0
a=T38FaxRateManagement:transferredTCF
a=T38FaxMaxBuffer:2000
a=T38FaxMaxDatagram:1400
a=T38FaxUdpEC:t38UDPRedundancy
a=T38MaxBitRate:14400
[2017-06-15 07:43:57] DEBUG[11705]: res_pjsip/pjsip_distributor.c:379 distributor: Searching for serializer on dialog dlg0x7f5f18019fc8 for Response msg 200/INVITE/cseq=24420 (rdata0x7f5f1801a758)
[2017-06-15 07:4...
2010 Feb 02
4
Asterisk 1.6.1.13 and T.38 faxing
...08:38:56] DEBUG[21032]: chan_sip.c:7753 process_sdp: Processing media-level (image) SDP a=T38FaxVersion:0... OK.
[Feb 2 08:38:56] DEBUG[21032]: chan_sip.c:8263 process_sdp_a_image: MaxBufferSize:1100
[Feb 2 08:38:56] DEBUG[21032]: chan_sip.c:7753 process_sdp: Processing media-level (image) SDP a=T38FaxMaxBuffer:1100... OK.
[Feb 2 08:38:56] DEBUG[21032]: chan_sip.c:8298 process_sdp_a_image: FaxMaxDatagram: 612
[Feb 2 08:38:56] DEBUG[21032]: chan_sip.c:7753 process_sdp: Processing media-level (image) SDP a=T38FaxMaxDatagram:612... OK.
[Feb 2 08:38:56] DEBUG[21032]: chan_sip.c:8266 process_sdp_a_image:...
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