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<div class="moz-cite-prefix">It actually is answered, but really
not, cause ot tries to be a fax, and it´s not. It rings, i took
the phone and no audio, so the call is canceled as it´s supossed
to ba a fax.<br>
<br>
That´s the main thing on "blacklisting" fax<br>
<br>
<br>
El 20/06/2014 16:13, Matthew Ogden escribió:<br>
</div>
<blockquote
cite="mid:2129d06a8db19a3d5375d49b0212fe99@mail.gmail.com"
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<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Your
calling device is just canceling the call after ringing for
9 seconds. The call is never actually established. T38 can
only happen after 200 OK, and that’s not happening in this
call log</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal">Jun 19 10:36:43 SIPSW
/usr/sbin/kamailio[2403]: INFO: <script>: NAT-Reply -
S=100 - Connecting M=INVITE IP=<a moz-do-not-send="true"
href="http://154.58.3.158:5060">154.58.3.158:5060</a> (<a
moz-do-not-send="true" href="http://127.0.0.1:5080">127.0.0.1:5080</a>)
<a moz-do-not-send="true" href="mailto:ID=15059@154.58.3.158">ID=15059@154.58.3.158</a><br>
Jun 19 10:36:43 SIPSW /usr/sbin/kamailio[2395]: INFO:
<script>: NAT-Reply - S=180 - Ringing M=INVITE IP=<a
moz-do-not-send="true" href="http://154.58.3.158:5060">154.58.3.158:5060</a>
(<a moz-do-not-send="true" href="http://127.0.0.1:5080">127.0.0.1:5080</a>)
<a moz-do-not-send="true" href="mailto:ID=15059@154.58.3.158">ID=15059@154.58.3.158</a><br>
Jun 19 10:36:52 SIPSW /usr/sbin/kamailio[2399]: INFO:
<script>: New request - M=CANCEL <a
moz-do-not-send="true"
href="mailto:R=sip:984099519@154.58.3.135">R=sip:984099519@154.58.3.135</a>
<a moz-do-not-send="true"
href="mailto:F=sip:x1009@154.58.3.135">F=sip:x1009@154.58.3.135</a>
<a moz-do-not-send="true"
href="mailto:T=sip:984099519@154.58.3.135">T=sip:984099519@154.58.3.135</a>
IP=<a moz-do-not-send="true" href="http://154.58.3.158:5060">154.58.3.158:5060</a>
(<a moz-do-not-send="true" href="http://127.0.0.1:5060">127.0.0.1:5060</a>)
<a moz-do-not-send="true" href="mailto:ID=15059@154.58.3.158">ID=15059@154.58.3.158</a><br>
<br>
<span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<div>
<div style="border:none;border-top:solid #e1e1e1
1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext">From:</span></b><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext">
<a moz-do-not-send="true"
href="mailto:spce-user-bounces@lists.sipwise.com">spce-user-bounces@lists.sipwise.com</a>
[mailto:<a moz-do-not-send="true"
href="mailto:spce-user-bounces@lists.sipwise.com">spce-user-bounces@lists.sipwise.com</a>]
<b>On Behalf Of </b>Leopoldo Iglesia<br>
<b>Sent:</b> 20 June 2014 04:09 PM<br>
<b>To:</b> <a moz-do-not-send="true"
href="mailto:spce-user@lists.sipwise.com">spce-user@lists.sipwise.com</a><br>
<b>Subject:</b> Re: [Spce-user] Fwd: Re: Blacklist t.38
fax codec</span></p>
</div>
</div>
<p class="MsoNormal">
</p>
<div>
<p class="MsoNormal"><br>
The log for kamailio-proxy tells this when I call , and
client tries to negotiate as fax.... <br>
<br>
Any ideas, apart from las post? Thanks<br>
<br>
Jun 19 10:36:43 SIPSW /usr/sbin/kamailio[2391]: INFO:
<script>: Setting PPI to '<a moz-do-not-send="true"
href="mailto:sip:984099520@154.58.3.135"><sip:984099520@154.58.3.135></a>'
- <a moz-do-not-send="true"
href="mailto:R=sip:x1008@154.58.3.159:5060">R=sip:x1008@154.58.3.159:5060</a>
<a moz-do-not-send="true"
href="mailto:ID=15059@154.58.3.158">ID=15059@154.58.3.158</a><br>
Jun 19 10:36:43 SIPSW /usr/sbin/kamailio[2391]: INFO:
<script>: Prepare Diversion setting - <a
moz-do-not-send="true"
href="mailto:R=sip:x1008@154.58.3.159:5060">R=sip:x1008@154.58.3.159:5060</a>
<a moz-do-not-send="true"
href="mailto:ID=15059@154.58.3.158">ID=15059@154.58.3.158</a><br>
Jun 19 10:36:43 SIPSW /usr/sbin/kamailio[2391]: INFO:
<script>: No selector set, not setting CLI - <a
moz-do-not-send="true"
href="mailto:R=sip:x1008@154.58.3.159:5060">R=sip:x1008@154.58.3.159:5060</a>
<a moz-do-not-send="true"
href="mailto:ID=15059@154.58.3.158">ID=15059@154.58.3.158</a><br>
Jun 19 10:36:43 SIPSW /usr/sbin/kamailio[2391]: INFO:
<script>: Prepare History-Info setting - <a
moz-do-not-send="true"
href="mailto:R=sip:x1008@154.58.3.159:5060">R=sip:x1008@154.58.3.159:5060</a>
<a moz-do-not-send="true"
href="mailto:ID=15059@154.58.3.158">ID=15059@154.58.3.158</a><br>
Jun 19 10:36:43 SIPSW /usr/sbin/kamailio[2391]: INFO:
<script>: No selector set, not setting CLI - <a
moz-do-not-send="true"
href="mailto:R=sip:x1008@154.58.3.159:5060">R=sip:x1008@154.58.3.159:5060</a>
<a moz-do-not-send="true"
href="mailto:ID=15059@154.58.3.158">ID=15059@154.58.3.158</a><br>
Jun 19 10:36:43 SIPSW /usr/sbin/kamailio[2391]: INFO:
<script>: Applying callee-out domain rewrite rules
using dpid '4' - <a moz-do-not-send="true"
href="mailto:R=sip:x1008@154.58.3.159:5060">R=sip:x1008@154.58.3.159:5060</a>
<a moz-do-not-send="true"
href="mailto:ID=15059@154.58.3.158">ID=15059@154.58.3.158</a><br>
Jun 19 10:36:43 SIPSW /usr/sbin/kamailio[2391]: INFO:
<script>: No matching rewrite rules for 'x1008' found
- <a moz-do-not-send="true"
href="mailto:R=sip:x1008@154.58.3.159:5060">R=sip:x1008@154.58.3.159:5060</a>
<a moz-do-not-send="true"
href="mailto:ID=15059@154.58.3.158">ID=15059@154.58.3.158</a><br>
Jun 19 10:36:43 SIPSW /usr/sbin/kamailio[2391]: INFO:
<script>: Setting P-Called-Party-ID '<a
moz-do-not-send="true"
href="mailto:sip:x1008@154.58.3.135"><sip:x1008@154.58.3.135></a>'
- <a moz-do-not-send="true"
href="mailto:R=sip:x1008@154.58.3.159:5060">R=sip:x1008@154.58.3.159:5060</a>
<a moz-do-not-send="true"
href="mailto:ID=15059@154.58.3.158">ID=15059@154.58.3.158</a><br>
Jun 19 10:36:43 SIPSW /usr/sbin/kamailio[2391]: INFO:
<script>: Writing sbc parameters
;aleg_sst_enable=no;sst_enable=no - <a
moz-do-not-send="true"
href="mailto:R=sip:x1008@154.58.3.159:5060">R=sip:x1008@154.58.3.159:5060</a>
<a moz-do-not-send="true"
href="mailto:ID=15059@154.58.3.158">ID=15059@154.58.3.158</a><br>
Jun 19 10:36:43 SIPSW /usr/sbin/kamailio[2391]: INFO:
<script>: Appending P-D-URI '<a moz-do-not-send="true"
href="mailto:sip:lb@127.0.0.1;lr;socket=">sip:lb@127.0.0.1;lr;socket=</a>'sip:<a
moz-do-not-send="true" href="http://154.58.3.135:5060">154.58.3.135:5060</a>''
- <a moz-do-not-send="true"
href="mailto:R=sip:x1008@154.58.3.159:5060">R=sip:x1008@154.58.3.159:5060</a>
<a moz-do-not-send="true"
href="mailto:ID=15059@154.58.3.158">ID=15059@154.58.3.158</a><br>
Jun 19 10:36:43 SIPSW /usr/sbin/kamailio[2391]: INFO:
<script>: Forcing request via B2BUA 'sip:<a
moz-do-not-send="true" href="http://127.0.0.1:5080">127.0.0.1:5080</a>'
- <a moz-do-not-send="true"
href="mailto:R=sip:x1008@154.58.3.159:5060">R=sip:x1008@154.58.3.159:5060</a>
<a moz-do-not-send="true"
href="mailto:ID=15059@154.58.3.158">ID=15059@154.58.3.158</a><br>
Jun 19 10:36:43 SIPSW /usr/sbin/kamailio[2391]: INFO:
<script>: Request leaving server, D-URI='sip:<a
moz-do-not-send="true" href="http://127.0.0.1:5080">127.0.0.1:5080</a>'
- <a moz-do-not-send="true"
href="mailto:R=sip:x1008@154.58.3.159:5060">R=sip:x1008@154.58.3.159:5060</a>
<a moz-do-not-send="true"
href="mailto:ID=15059@154.58.3.158">ID=15059@154.58.3.158</a><br>
Jun 19 10:36:43 SIPSW /usr/sbin/kamailio[2403]: INFO:
<script>: NAT-Reply - S=100 - Connecting M=INVITE IP=<a
moz-do-not-send="true" href="http://154.58.3.158:5060">154.58.3.158:5060</a>
(<a moz-do-not-send="true" href="http://127.0.0.1:5080">127.0.0.1:5080</a>)
<a moz-do-not-send="true"
href="mailto:ID=15059@154.58.3.158">ID=15059@154.58.3.158</a><br>
Jun 19 10:36:43 SIPSW /usr/sbin/kamailio[2395]: INFO:
<script>: NAT-Reply - S=180 - Ringing M=INVITE IP=<a
moz-do-not-send="true" href="http://154.58.3.158:5060">154.58.3.158:5060</a>
(<a moz-do-not-send="true" href="http://127.0.0.1:5080">127.0.0.1:5080</a>)
<a moz-do-not-send="true"
href="mailto:ID=15059@154.58.3.158">ID=15059@154.58.3.158</a><br>
Jun 19 10:36:52 SIPSW /usr/sbin/kamailio[2399]: INFO:
<script>: New request - M=CANCEL <a
moz-do-not-send="true"
href="mailto:R=sip:984099519@154.58.3.135">R=sip:984099519@154.58.3.135</a>
<a moz-do-not-send="true"
href="mailto:F=sip:x1009@154.58.3.135">F=sip:x1009@154.58.3.135</a>
<a moz-do-not-send="true"
href="mailto:T=sip:984099519@154.58.3.135">T=sip:984099519@154.58.3.135</a>
IP=<a moz-do-not-send="true" href="http://154.58.3.158:5060">154.58.3.158:5060</a>
(<a moz-do-not-send="true" href="http://127.0.0.1:5060">127.0.0.1:5060</a>)
<a moz-do-not-send="true"
href="mailto:ID=15059@154.58.3.158">ID=15059@154.58.3.158</a><br>
Jun 19 10:36:52 SIPSW /usr/sbin/kamailio[2399]: INFO:
<script>: Stop mediaproxy for current branch using
first Via - <a moz-do-not-send="true"
href="mailto:R=sip:984099519@154.58.3.135">R=sip:984099519@154.58.3.135</a>
<a moz-do-not-send="true"
href="mailto:ID=15059@154.58.3.158">ID=15059@154.58.3.158</a><br>
Jun 19 10:36:52 SIPSW /usr/sbin/kamailio[2399]: ERROR:
rtpproxy-ng [rtpproxy.c:1348]: proxy replied with error:
Call-ID not found or tags didn't match<br>
Jun 19 10:36:52 SIPSW /usr/sbin/kamailio[2399]: INFO:
<script>: Request leaving server via local route - <a
moz-do-not-send="true"
href="mailto:R=sip:984099519@154.58.3.135">R=sip:984099519@154.58.3.135</a>
<a moz-do-not-send="true"
href="mailto:ID=15059@154.58.3.158">ID=15059@154.58.3.158</a><br>
Jun 19 10:36:52 SIPSW /usr/sbin/kamailio[2393]: INFO:
<script>: NAT-Reply - S=487 - Request terminated
M=INVITE IP=<a moz-do-not-send="true"
href="http://154.58.3.158:5060">154.58.3.158:5060</a> (<a
moz-do-not-send="true" href="http://127.0.0.1:5080">127.0.0.1:5080</a>)
<a moz-do-not-send="true"
href="mailto:ID=15059@154.58.3.158">ID=15059@154.58.3.158</a><br>
Jun 19 10:36:52 SIPSW /usr/sbin/kamailio[2393]: INFO:
<script>: Failure route for local call - <a
moz-do-not-send="true"
href="mailto:R=sip:984099519@154.58.3.135">R=sip:984099519@154.58.3.135</a>
<a moz-do-not-send="true"
href="mailto:ID=15059@154.58.3.158">ID=15059@154.58.3.158</a><br>
Jun 19 10:36:52 SIPSW /usr/sbin/kamailio[2393]: INFO:
<script>: Stop mediaproxy for current branch using
first Via - <a moz-do-not-send="true"
href="mailto:R=sip:984099519@154.58.3.135">R=sip:984099519@154.58.3.135</a>
<a moz-do-not-send="true"
href="mailto:ID=15059@154.58.3.158">ID=15059@154.58.3.158</a><br>
Jun 19 10:36:52 SIPSW /usr/sbin/kamailio[2393]: ERROR:
rtpproxy-ng [rtpproxy.c:1348]: proxy replied with error:
Call-ID not found or tags didn't match<br>
Jun 19 10:36:52 SIPSW /usr/sbin/kamailio[2393]: INFO:
<script>: Final reply - <a moz-do-not-send="true"
href="mailto:R=sip:984099519@154.58.3.135">R=sip:984099519@154.58.3.135</a>
<a moz-do-not-send="true"
href="mailto:ID=15059@154.58.3.158">ID=15059@154.58.3.158</a><br>
Jun 19 10:36:52 SIPSW /usr/sbin/kamailio[2401]: INFO:
<script>: New request - M=ACK <a
moz-do-not-send="true"
href="mailto:R=sip:984099519@154.58.3.135">R=sip:984099519@154.58.3.135</a>
<a moz-do-not-send="true"
href="mailto:F=sip:x1009@154.58.3.135">F=sip:x1009@154.58.3.135</a>
<a moz-do-not-send="true"
href="mailto:T=sip:984099519@154.58.3.135">T=sip:984099519@154.58.3.135</a>
IP=<a moz-do-not-send="true" href="http://154.58.3.158:5060">154.58.3.158:5060</a>
(<a moz-do-not-send="true" href="http://127.0.0.1:5060">127.0.0.1:5060</a>)
<a moz-do-not-send="true"
href="mailto:ID=15059@154.58.3.158">ID=15059@154.58.3.158</a><br>
<br>
<br>
El 20/06/2014 14:24, Daniel Grotti escribió:</p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<div>
<p class="MsoNormal">Could be,<br>
as I see also the normal t38 negotiation is
client-dependent....it <br>
<br>
But from RFC3261:<br>
<br>
During the session, either Alice or Bob may decide to
change the<br>
characteristics of the media session. This is
accomplished by<br>
sending a re-INVITE containing a new media
description. This re-<br>
INVITE references the existing dialog so that the other
party knows<br>
that it is to modify an existing session instead of
establishing a<br>
new session. The other party sends a 200 (OK) to
accept the change.<br>
The requestor responds to the 200 (OK) with an ACK. If
the other<br>
party does not accept the change, he sends an error
response such as<br>
488 (Not Acceptable Here), which also receives an ACK.
However, the<br>
failure of the re-INVITE does not cause the existing
call to fail -<br>
the session continues using the previously negotiated<br>
characteristics.<br>
<br>
<br>
<br>
Daniel<br>
<br>
<br>
<br>
<br>
On 06/20/2014 02:08 PM, Matthew Ogden wrote:</p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">I
think the problem is, a 488 will stop the call
altogether?</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">I
cant recall, but if you get a 488 in a REINVITE, will
the call not terminate after that, or does it “failback”
to leaving t38 un-negotiated… might be device dependent?</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<div>
<div style="border:none;border-top:solid #e1e1e1
1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal">
<b><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext">From:</span></b><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext">
<a moz-do-not-send="true"
href="mailto:spce-user-bounces@lists.sipwise.com">spce-user-bounces@lists.sipwise.com</a>
[mailto:<a moz-do-not-send="true"
href="mailto:spce-user-bounces@lists.sipwise.com">spce-user-bounces@lists.sipwise.com</a>]
<b>On Behalf Of </b>Leopoldo Iglesia<br>
<b>Sent:</b> 20 June 2014 01:55 PM<br>
<b>To:</b> <a moz-do-not-send="true"
href="mailto:spce-user@lists.sipwise.com">spce-user@lists.sipwise.com</a><br>
<b>Subject:</b> Re: [Spce-user] Fwd: Re: Blacklist
t.38 fax codec</span></p>
</div>
</div>
<p class="MsoNormal">
</p>
<div>
<p class="MsoNormal">Ok. "has_totag" where is located ??<br>
<br>
El 20/06/2014 13:35, Daniel Grotti escribió:</p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<div>
<p class="MsoNormal">
I have nothing ready to give you right now.<br>
Basically on kamailio proxy you should match a
Re-invite (using the "has_totag") and check if SDP
contains t38 headers/codec (just have a look how the
T38 reinvite looks like).<br>
So, if you receive a re-invite with T38 headers into
SDP, just send back a 488 reply.<br>
<br>
Daniel<br>
<br>
<br>
<br>
<br>
<br>
On 06/20/2014 01:28 PM, Leopoldo Iglesia wrote:</p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<div>
<p class="MsoNormal">Fine, how can I do this hack?
cause endpoints is impossible to mod config, so they
are rented and provisioned by an ftth operator.<br>
<br>
El 20/06/2014 13:23, Daniel Grotti escribió:</p>
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<p class="MsoNormal">Hi,<br>
I think you need to avoid to forward the T38
Re-INVITE, so you should hack your SPCE in order
to reply to the T38 re-invite with a "488 Not
acceptable here", for example.<br>
So the sender SHOULD fallback to G711.<br>
Anyway, the best solution if you have endpoint
with t38 enabled but they don't work well, is to
disable t38.<br>
<br>
<br>
Daniel<br>
<br>
<br>
<br>
On 06/20/2014 01:15 PM, Leopoldo Iglesia wrote:</p>
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<p class="MsoNormal"><br>
> But both endpoints support it, that is the
problem and the only > scenario when it
fails, so i want SPCE not to send Fax
negotiation to > endpoint,.<br>
<br>
<br>
<br>
El 20/06/2014 12:12, Daniel Grotti escribió:
>> Hi, >> that's strange, if one of
the endpoints try to switch to t38 and the
>> other endpoint doesn't support it, they
should fallback to G711. >> >>
Daniel >> >> >> >>
>> >> >> On 06/20/2014 01:33
AM, Leopoldo Iglesia wrote: >>> How can
I, blacklist t.38 to avoid endpoints to try t38
negotiation? >>> >>> When i
call from ericcson ont to fax capable endpoint,
it try to >>> connect t38 fax and There
is no voice. >>> >>> Thanks
>>> >>> Leopoldo iglesia
>>> >>>
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