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Btw, there is a global parameter to disable server signatures:<br>
<br>
- <a class="moz-txt-link-freetext" href="http://www.kamailio.org/wiki/cookbooks/devel/core#server_signature">http://www.kamailio.org/wiki/cookbooks/devel/core#server_signature</a><br>
<br>
According to the code, it affect USER-Agent when generating a
request and Server header for replies.<br>
<br>
Turn it of and can get rid of the workaround with custom header
name.<br>
<br>
Cheers,<br>
Daniel<br>
<br>
<div class="moz-cite-prefix">On 09/10/14 13:52, Daniel-Constantin
Mierla wrote:<br>
</div>
<blockquote cite="mid:543676EF.50802@gmail.com" type="cite">
<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
Hello,<br>
<br>
<div class="moz-cite-prefix">On 09/10/14 13:19, Errol Samuels
wrote:<br>
</div>
<blockquote
cite="mid:CAJvCycftGwPotGW=XYmifqX-Nj94=a+i9FM4h_QWXaQn9ppMYA@mail.gmail.com"
type="cite">
<div dir="ltr">
<div>
<div>
<div>
<div>HI Daniel,<br>
<br>
Thanks for that.<br>
<br>
</div>
In my case I would need to use something like:<br>
<br>
user_agent_header = "X-Proxy: $ua"<br>
</div>
</div>
</div>
</div>
</blockquote>
The only purpose of the above line is that Kamailio doesn't add an
User-Agent header by itself, but this X-Proxy (which you can
change as well).<br>
<br>
Then you still add User-Agent in $uac_req(hdrs), but you don't end
up with two User-Agent headers anymore.<br>
<br>
Hope is more clear now the purpose of X-Proxy header.<br>
<br>
Cheers,<br>
Daniel<br>
<br>
<blockquote
cite="mid:CAJvCycftGwPotGW=XYmifqX-Nj94=a+i9FM4h_QWXaQn9ppMYA@mail.gmail.com"
type="cite">
<div dir="ltr">
<div>
<div>
<div><br>
</div>
since we don't what to hardcode a specific value which
would affect every device that is registering but rather
$ua which would set the real UA of the device that is
registering at that time.<br>
<br>
</div>
Does that make sense?<br>
<br>
</div>
regards,<br>
<br>
Errol<br>
<br>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Thu, Oct 9, 2014 at 12:09 PM,
Daniel-Constantin Mierla <span dir="ltr"><<a
moz-do-not-send="true" href="mailto:miconda@gmail.com"
target="_blank">miconda@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
<div>
<div class="h5"> <br>
<div>On 08/10/14 19:25, Errol Samuels wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">
<div>I followed Daniel's instructions and made
some progress but not 100% there yet.<br>
<br>
-------[Global section]----------<br>
<br>
user_agent_header=""<br>
<br>
-------[Main Routing Logic]-------<br>
<br>
# handle registrations<br>
if (is_method("REGISTER"))<br>
{ <br>
$avp(new_user_agent) = $ua;<br>
}<br>
route(REGISTRAR);<br>
.<br>
.<br>
<br>
# Forward REGISTER to Freeswitch<br>
route[REGFWD] {<br>
<br>
if(!is_method("REGISTER"))<br>
{<br>
return;<br>
}<br>
route(DISPATCH);<br>
$uac_req(method)="REGISTER";<br>
$uac_req(ruri)=$du;<br>
$uac_req(furi)=$fn + "<sip:" + $au
+ "@" + $ar + ">";<br>
$uac_req(turi)=$tn + "<sip:" + $au
+ "@" + $ar + ">";<br>
$uac_req(hdrs)="Contact: <sip:" +
$au + "@"<br>
+ $ar<br>
+
";fs_path=sip:"<br>
+
$sel(cfg_get.kamailio.bindip)<br>
+ ":" +
$sel(cfg_get.kamailio.bindport)<br>
+ ">"<br>
+ "\r\n";<br>
if($sel(contact.expires) != $null)<br>
$uac_req(hdrs)= $uac_req(hdrs)
+ "Expires: " + $sel(contact.expires) +
"\r\n";<br>
else<br>
$uac_req(hdrs)= $uac_req(hdrs)
+ "Expires: " + $hdr(Expires) + "\r\n";<br>
$uac_req(hdrs)= $uac_req(hdrs) +
"User-Agent: " + $avp(new_user_agent) +
"\r\n";<br>
uac_req_send();<br>
exit;<br>
}<br>
#!endif<br>
<br>
------------<br>
<br>
Now the correct User-Agent appears in the
REGISTER message but in Freeswitch it shows as
unknown.<br>
<br>
U 184.xx.xx.208:5060 -> 184.xx.xx.198:6060<br>
REGISTER <a moz-do-not-send="true">sip:184.x.x.198:6060</a>
SIP/2.0.<br>
Via: SIP/2.0/UDP
184.xx.xx.208;branch=z9hG4bKa764.668d6dc7.0.<br>
To: <<a moz-do-not-send="true"
href="mailto:sip%3A1001@pbx.mydomain.com"
target="_blank">sip:1001@pbx.mydomain.com</a>>.<br>
From: <<a moz-do-not-send="true"
href="mailto:sip%3A1001@pbx.mydomain.com"
target="_blank">sip:1001@pbx.mydomain.com</a>>;tag=6f72f76f3402bf7cf11f6917529ca761-2ceb.<br>
CSeq: 10 REGISTER.<br>
Call-ID: <a moz-do-not-send="true"
href="mailto:4570a277563cdffc-61869@184.xx.xx.208"
target="_blank">4570a277563cdffc-61869@184.xx.xx.208</a>.<br>
Max-Forwards: 70.<br>
Content-Length: 0.<br>
.<br>
Contact: <<a moz-do-not-send="true"
href="mailto:sip%3A1001@pbx.mydomain.com"
target="_blank">sip:1001@pbx.mydomain.com</a>;fs_path=<a
moz-do-not-send="true">sip:184.xx.xx.208:5060</a>>.<br>
Expires: 120.<br>
User-Agent: Yealink SIP-T46G 28.72.0.26.<br>
.<br>
----------------<br>
<br>
Got some extra dots in there but not sure why
they are there and how they got there.<br>
Any ideas? Anything I missed?<br>
</div>
</div>
</blockquote>
<br>
</div>
</div>
Apparently by setting an empty user-agent header value
in kamailio config file results in an empty line in
headers, which means end of headers. So it kind of
breaks the headers -- I will fix that in kamailio.<br>
<br>
A solution for now will be to use:<br>
<br>
user_agent_header = "X-Proxy: abc"<br>
<br>
Or, in other words, set the value of the parameter to
something that doesn't include User-Agent: as header
name.<br>
<br>
Cheers,<br>
Daniel<span class=""><br>
<br>
<blockquote type="cite">
<div dir="ltr">
<div><br>
BR<br>
<br>
</div>
Errol<br>
<br>
<div><br>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Wed, Oct 8, 2014
at 12:34 PM, Daniel-Constantin Mierla <span
dir="ltr"><<a moz-do-not-send="true"
href="mailto:miconda@gmail.com"
target="_blank">miconda@gmail.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote"
style="margin:0px 0px 0px
0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
Perhaps you can get it with adding
User-Agent header to $uac_req(hdrs):<br>
<br>
$uac_req(hdrs)= $uac_req(hdrs) +
"User-Agent: " + $ua + "\r\n";<br>
<br>
And sent the global parameter:<br>
<br>
user_agent_header=""<br>
<br>
But then no local generated request has
user agent, which probably is ok for
you.<br>
<br>
There are still ways to use
event_route[tm:local-request] to set a
custom user agent header, but would
require something like:<br>
- add $us in $uac_req(hdrs) as X-UA
header<br>
- in event_route[tm:local-request],
remove User-Agent and X-UA headers and
add again User-Agent taking the value
from X-UA<br>
<br>
Cheers,<br>
Daniel
<div>
<div><br>
<br>
<br>
</div>
</div>
</div>
<br>
</blockquote>
</div>
<br>
</div>
</div>
</div>
</blockquote>
<br>
</span><span class="">
<pre cols="72">--
Daniel-Constantin Mierla
<a moz-do-not-send="true" href="http://twitter.com/#%21/miconda" target="_blank">http://twitter.com/#!/miconda</a> - <a moz-do-not-send="true" href="http://www.linkedin.com/in/miconda" target="_blank">http://www.linkedin.com/in/miconda</a></pre>
</span></div>
</blockquote>
</div>
<br>
</div>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
Daniel-Constantin Mierla
<a moz-do-not-send="true" class="moz-txt-link-freetext" href="http://twitter.com/#%21/miconda">http://twitter.com/#!/miconda</a> - <a moz-do-not-send="true" class="moz-txt-link-freetext" href="http://www.linkedin.com/in/miconda">http://www.linkedin.com/in/miconda</a></pre>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
Daniel-Constantin Mierla
<a class="moz-txt-link-freetext" href="http://twitter.com/#!/miconda">http://twitter.com/#!/miconda</a> - <a class="moz-txt-link-freetext" href="http://www.linkedin.com/in/miconda">http://www.linkedin.com/in/miconda</a></pre>
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