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<div class="moz-cite-prefix">Ok,<br>
What client is that which is not support T38 negotiation.<br>
Sorry, but you have to fix a client issue on server side, this is
something awkward.<br>
<br>
So you should remove that T38 codecs then.<br>
The following module may help:<br>
<br>
<a class="moz-txt-link-freetext" href="http://kamailio.org/docs/modules/4.0.x/modules/sdpops.html">http://kamailio.org/docs/modules/4.0.x/modules/sdpops.html</a><br>
<br>
Try to have a look at this.<br>
<br>
Daniel<br>
<br>
<br>
<br>
On 06/26/2014 10:18 AM, Leopoldo Iglesia wrote:<br>
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<div class="moz-cite-prefix">When the proxy answer the 488, next
packet is other invite.. and no more.<br>
<br>
The problem is that the SDP packet comes withh all codecs like
this<br>
<br>
<img src="cid:part1.06070906.03030008@sipwise.com" alt=""><br>
<br>
El 20/06/2014 14:09, Daniel Grotti escribió:<br>
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<div class="moz-cite-prefix">Hi,<br>
If you want to discard all INVITEs with T38, you can try to
add something like that in your
/etc/ngcp-config/templates/etc/kamailio/proxy/proxy.cfg.customtt.tt2:<br>
<br>
<br>
if(is_method("INVITE") && search_body("udptl"))<br>
{<br>
sl_send_reply("488", "Not Acceptable Here");<br>
exit;<br>
}<br>
<br>
before to send the invite to ROUTE_INVITE.<br>
Then run "ngcpcfg apply".<br>
<br>
So, each INVITE/REINVITE with udpl in their body will be
discarded.<br>
<br>
<br>
Daniel<br>
<br>
<br>
<br>
<br>
On 06/20/2014 01:35 PM, Daniel Grotti wrote:<br>
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<div class="moz-cite-prefix">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:<br>
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<div class="moz-cite-prefix">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:<br>
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<div class="moz-cite-prefix">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:<br>
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> 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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class="moz-txt-link-abbreviated"
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class="moz-txt-link-freetext"
href="http://lists.sipwise.com/listinfo/spce-user">http://lists.sipwise.com/listinfo/spce-user</a>
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