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Ahh, I thought Asterisk is in the public internet, but actually you
connect to a provider (vendor), which seems to run Kamailio as well.<br>
<br>
Using information from 100 trying is too late, as the INVITE was
already sent... so one more question before trying to propose a
solution. Do you have to register to the provider?<br>
<br>
Cheers,<br>
Daniel<br>
<br>
<div class="moz-cite-prefix">On 14/01/16 18:51, Nelson Migliaro
wrote:<br>
</div>
<blockquote
cite="mid:CALcOv0TnWAUiXPdofeQkkH7PjRBFwTsV9Bc_TXja64G=xX0a9A@mail.gmail.com"
type="cite">
<div dir="ltr">
<div>
<div>
<div>
<div>Yes it is possible, but is there an easy way to
workaround the issue using Kamailio.<br>
<br>
</div>
Because I have the port because vendor is sending that
info in Trying:<br>
<br>
2016/01/13 20:10:15.842055 VENDOR-IP:5060 ->
PRIVATE-IP-KAMAILIO:5060<br>
SIP/2.0 100 trying -- your call is important to us<br>
Via: SIP/2.0/UDP PUBLIC-IP:52548;branch=
<div>z9hG4bKdd74.992e238037882e809653f713a5a580a9.1;rport=<b>52548</b></div>
<br>
</div>
</div>
I need to find the way to discover the port used by firewall
(maybe getting that info from Trying) and then advertise that
port.<br>
<br>
</div>
<div>
<div>
<div>
<div><br>
</div>
</div>
</div>
</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">2016-01-14 18:32 GMT+01:00
Daniel-Constantin Mierla <span dir="ltr"><<a
moz-do-not-send="true" href="mailto:miconda@gmail.com"
target="_blank"><a class="moz-txt-link-abbreviated" href="mailto:miconda@gmail.com">miconda@gmail.com</a></a>></span>:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000"> Not really up to date
with all Asterisk features -- do you know if you can
append a custom header to a SIP response that is going to
be generated by Asterisk? Eventually the reply for an
OPTIONS request.<br>
<br>
Cheers,<br>
Daniel
<div>
<div class="h5"><br>
<br>
<div>On 14/01/16 17:19, Nelson Migliaro wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">Yes, I manage all devices, even the
internet router but it does not allow static pat.<br>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">2016-01-14 16:07
GMT+01:00 Daniel-Constantin Mierla <span
dir="ltr"><<a moz-do-not-send="true"
href="mailto:miconda@gmail.com"
target="_blank">miconda@gmail.com</a>></span>:<br>
<blockquote class="gmail_quote" style="margin:0
0 0 .8ex;border-left:1px #ccc
solid;padding-left:1ex">
<div dir="ltr">Do you control the Asterisk? If
yes, depending on Asterisk capabilities of
building replies, you may be able to do some
automation to detect the external port.
<div><br>
</div>
<div>Cheers,</div>
<div>Daniel</div>
</div>
<div>
<div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Thu, Jan 14,
2016 at 3:47 PM, Nelson Migliaro <span
dir="ltr"><<a
moz-do-not-send="true"
href="mailto:eng.migliaro@gmail.com"
target="_blank"><a class="moz-txt-link-abbreviated" href="mailto:eng.migliaro@gmail.com">eng.migliaro@gmail.com</a></a>></span>
wrote:<br>
<blockquote class="gmail_quote"
style="margin:0 0 0
.8ex;border-left:1px #ccc
solid;padding-left:1ex">
<div dir="ltr">
<div>
<div>There is not a public
Kamailio, only one Kamailio
behind NAT,<br>
</div>
<div><br>
Right now the configuration
is:<br>
<br>
</div>
Asterisk <-> Kamailio
(Private IP + advertise public
IP + RTP Proxy ) <->
Internet router (public IP +
symmetric na) <-> Internet<br>
<br>
</div>
Regards,<br>
</div>
<div>
<div>
<div class="gmail_extra"><br>
<div class="gmail_quote">2016-01-14
15:43 GMT+01:00
Daniel-Constantin Mierla <span
dir="ltr"><<a
moz-do-not-send="true"
href="mailto:miconda@gmail.com"
target="_blank"><a class="moz-txt-link-abbreviated" href="mailto:miconda@gmail.com">miconda@gmail.com</a></a>></span>:<br>
<blockquote
class="gmail_quote"
style="margin:0 0 0
.8ex;border-left:1px #ccc
solid;padding-left:1ex">
<div dir="ltr">Is the
kamailio behind nat
communicating with
another kamailio on a
public IP?
<div><br>
</div>
<div>Cheers,</div>
<div>DAniel</div>
</div>
<div class="gmail_extra">
<div>
<div><br>
<div
class="gmail_quote">On
Thu, Jan 14, 2016
at 1:33 PM, Nelson
Migliaro <span
dir="ltr"><<a
moz-do-not-send="true" href="mailto:eng.migliaro@gmail.com"
target="_blank"><a class="moz-txt-link-abbreviated" href="mailto:eng.migliaro@gmail.com">eng.migliaro@gmail.com</a></a>></span>
wrote:<br>
<blockquote
class="gmail_quote"
style="margin:0
0 0
.8ex;border-left:1px
#ccc
solid;padding-left:1ex">
<div dir="ltr">
<div>
<div>
<div>Thank you
Daniel for
your answer,<br>
<br>
</div>
As you
mention, there
is a symmetric
nat and router
does not allow
a static NAT.<br>
<br>
</div>
By sniffing
traffic I can
see the port
is using new
but in case it
change, how
can automate
the process of
advertising
the correct
port?<br>
<br>
</div>
Cheers!<br>
<div>
<div>
<div>
<div>
<div><br>
<br>
<div
class="gmail_quote">
<div>
<div>----------
Forwarded
message
----------<br>
From: <b
class="gmail_sendername">Daniel-Constantin
Mierla</b> <span
dir="ltr"><<a
moz-do-not-send="true" href="mailto:miconda@gmail.com" target="_blank"><a class="moz-txt-link-abbreviated" href="mailto:miconda@gmail.com">miconda@gmail.com</a></a>></span><br>
Date:
2016-01-13
23:28
GMT+01:00<br>
Subject: Re:
[SR-Users]
Kamailio and
NAT<br>
To: "Kamailio
(SER) - Users
Mailing List"
<<a
moz-do-not-send="true"
href="mailto:sr-users@lists.sip-router.org" target="_blank"><a class="moz-txt-link-abbreviated" href="mailto:sr-users@lists.sip-router.org">sr-users@lists.sip-router.org</a></a>><br>
<br>
<br>
</div>
</div>
<div
bgcolor="#FFFFFF"
text="#000000">
<div>
<div> Hello,<br>
<br>
it looks like
you have a
symmetric nat
router, so the
allocated port
is randomly
selected.<br>
<br>
If you don't
control the
nat router to
set a static
forwarding
rule or it
doesn't
provide the
option to set
static
forwarding,
then you are
pretty much
left with
sniffing the
traffic to
discover the
external port
and advertise
it.<br>
<br>
Cheers,<br>
Daniel</div>
</div>
<div>
<div>
<div>
<div><br>
<br>
<br>
<br>
<div>On
13/01/16
20:31, Nelson
Migliaro
wrote:<br>
</div>
</div>
</div>
<blockquote
type="cite">
<div dir="ltr">
<div>
<div>
<div>
<div>
<div>
<div>
<div>Hello,<br>
<br>
</div>
I finally were
able to run my
Kamailio
behind NAT but
in order to
accomplish
that I
included:<br>
<br>
listen=udp:SOURCE-IP:5060
advertise
PUBLIC-IP:52548<br>
<br>
</div>
52548 is the
port my
internet
router change
when doing NAT
(5060->52548).
I found this
port sniffing
traffic<br>
</div>
<br>
</div>
Conclusions at
this point
are:<br>
<br>
---------------------------------------------1--------------------------------------------------------------------------------------------------<br>
</div>
<div>If I use
this line:<br>
<br>
listen=udp:SOURCE-IP:5060
advertise
PUBLIC-IP:5060
it does not
work :(<br>
</div>
<br>
When I dial a
call, INVITE /
ACK / Trying /
OK goes fine
because they
are part of
the same
transaction<br>
</div>
</div>
<div>
<div>
<div>
<div>
<div>When
remote party
disconnects
the call, BYE
goes to
PUBLIC-IP port
5060 and
router blocks
de request. I
assume vendor
sends BYE to
5060 because
it is a new
transaction<br>
<br>
-----------------------------------------------2--------------------------------------------------------------------------------------------------
<div>If I use
this line:<br>
<br>
listen=udp:SOURCE-IP:5060
advertise
PUBLIC-IP:52548
it work !!!!!!<br>
</div>
<br>
When I dial a
call, INVITE /
ACK / Trying /
OK goes fine
because they
are part of
the same
transaction<br>
When remote
party
disconnects
the call, BYE
goes to
PUBLIC-IP port
52548 and
router forward
the request to
Kamailio.
Since there is
an open
connection.<br>
<br>
</div>
<div>I need to
find the way
to find the
way to
advertise the
public port
internet
router is
doing NAT
(PAT).<br>
<br>
---------------------------------------------------------------------------------------------------------------------------------------------------<br>
</div>
<div>This
trace is a
call that
worked fine
because I
included line:
<br>
<br>
</div>
<div>listen=udp:SOURCE-IP:5060
advertise
PUBLIC-IP:52548<br>
<br>
<br>
</div>
This trace is
an INVITE with
this line:
listen=udp:SOURCE-IP:5060
advertise
PUBLIC-IP:52548<br>
2016/01/13
20:10:15.793568
PRIVATE-IP-KAMAILIO:5060
->
VENDOR-IP:5060<br>
INVITE <a
moz-do-not-send="true"><a class="moz-txt-link-freetext" href="sip:NUM-DESTINATION@VENDOR-IP">sip:NUM-DESTINATION@VENDOR-IP</a></a>
SIP/2.0<br>
Record-Route:
<<a
moz-do-not-send="true"><a class="moz-txt-link-freetext" href="sip:PUBLIC-IP:52548;lr=on;ftag=as3b72a453;vsf=AAAAAAEECQkCAgsNAXBeL0NPXVQfU0suMTY5LjIzMQ--;vst=AAAAAAAAAAAAAAAAAABCUEIAX1lKWF5MF0tB">sip:PUBLIC-IP:52548;lr=on;ftag=as3b72a453;vsf=AAAAAAEECQkCAgsNAXBeL0NPXVQfU0suMTY5LjIzMQ--;vst=AAAAAAAAAAAAAAAAAABCUEIAX1lKWF5MF0tB</a></a><br>
A-;nat=yes><br>
Via:
SIP/2.0/UDP
PUBLIC-IP:52548;branch=z9hG4bKdd74.992e238037882e809653f713a5a580a9.0<br>
Via:
SIP/2.0/UDP
PRIVATE-IP-SOFTPHONE:5060;received=PRIVATE-IP-SOFTPHONE;branch=z9hG4bK2f4e76ba;rport=5060<br>
Max-Forwards:
69<br>
From:
NUM-SOURCE <a
moz-do-not-send="true"><a class="moz-txt-link-rfc2396E" href="sip:NUM-SOURCE@PRIVATE-IP-KAMAILIO"><sip:NUM-SOURCE@PRIVATE-IP-KAMAILIO></a></a>;tag=as3b72a453<br>
To: <a
moz-do-not-send="true"><a class="moz-txt-link-rfc2396E" href="sip:NUM-DESTINATION@sip.VENDOR-IP"><sip:NUM-DESTINATION@sip.VENDOR-IP></a></a><br>
Contact: <a
moz-do-not-send="true"><a class="moz-txt-link-rfc2396E" href="sip:NUM-SOURCE@PRIVATE-IP-SOFTPHONE:5060;alias=PUBLIC-IP~5060~1"><sip:NUM-SOURCE@PRIVATE-IP-SOFTPHONE:5060;alias=PUBLIC-IP~5060~1></a></a><br>
Call-ID:
329950447629810f7bdeaeed0cc034e1@PRIVATE-IP-SOFTPHONE:5060<br>
CSeq: 102
INVITE<br>
User-Agent:
Kamailio<br>
Date: Wed, 13
Jan 2016
19:10:15 GMT<br>
Allow: INVITE,
ACK, CANCEL,
OPTIONS, BYE,
REFER,
SUBSCRIBE,
NOTIFY, INFO,
PUBLISH,
MESSAGE<br>
Supported:
replaces,
timer<br>
Content-Type:
application/sdp<br>
Content-Length:
255<br>
<br>
<br>
Trying.....<br>
<br>
2016/01/13
20:10:15.842055
VENDOR-IP:5060
->
PRIVATE-IP-KAMAILIO:5060<br>
SIP/2.0 100
trying -- your
call is
important to
us<br>
Via:
SIP/2.0/UDP
PUBLIC-IP:52548;branch=z9hG4bKdd74.992e238037882e809653f713a5a580a9.1;rport=52548<br>
Via:
SIP/2.0/UDP
PRIVATE-IP-SOFTPHONE:5060;received=PRIVATE-IP-SOFTPHONE;branch=z9hG4bK2f4e76ba;rport=5060<br>
From:
NUM-SOURCE <a
moz-do-not-send="true"><a class="moz-txt-link-rfc2396E" href="sip:NUM-SOURCE@PRIVATE-IP-KAMAILIO"><sip:NUM-SOURCE@PRIVATE-IP-KAMAILIO></a></a>;tag=as3b72a453<br>
To: <a
moz-do-not-send="true"><a class="moz-txt-link-rfc2396E" href="sip:NUM-DESTINATION@VENDOR-IP"><sip:NUM-DESTINATION@VENDOR-IP></a></a><br>
Call-ID:
329950447629810f7bdeaeed0cc034e1@PRIVATE-IP-SOFTPHONE:5060<br>
CSeq: 102
INVITE<br>
Server:
kamailio<br>
Content-Length:
0<br>
<br>
<br>
<br>
<br>
And finally a
BYE<br>
<br>
2016/01/13
20:10:28.545526
VENDOR-IP:5060
->
PRIVATE-IP-KAMAILIO:5060<br>
BYE <a
moz-do-not-send="true"><a class="moz-txt-link-freetext" href="sip:34982298000@PRIVATE-IP-SOFTPHONE:5060;alias=PUBLIC-IP~5060~1">sip:34982298000@PRIVATE-IP-SOFTPHONE:5060;alias=PUBLIC-IP~5060~1</a></a>
SIP/2.0<br>
Via:
SIP/2.0/UDP
VENDOR-IP;branch=z9hG4bK26d8.847e6e14eef37e2cfc8b5e81d33de73d.0<br>
From: <a
moz-do-not-send="true"><a class="moz-txt-link-rfc2396E" href="sip:675896262@PRIVATE-IP-KAMAILIO"><sip:675896262@PRIVATE-IP-KAMAILIO></a></a>;tag=gK0293ed93<br>
</div>
</div>
To:
"NUM-SOURCE"
<<a
moz-do-not-send="true"><a class="moz-txt-link-freetext" href="sip:NUM-SOURCE@">sip:NUM-SOURCE@</a></a><a
moz-do-not-send="true">VENDOR-IP</a>>;tag=as3b72a453<span><br>
Call-ID:
329950447629810f7bdeaeed0cc034e1@PRIVATE-IP-SOFTPHONE:5060<br>
CSeq: 28731
BYE<br>
Max-Forwards:
69<br>
Route: <<a
moz-do-not-send="true"><a class="moz-txt-link-freetext" href="sip:PUBLIC-IP:52548;lr=on;ftag=as3b72a453;vsf=AAAAAAEECQkCAgsNAXBeL0NPXVQfU0suMTY5LjIzMQ--;vst=AAAAAAAAAAAAAAAAAABCUEIAX1lKWF5MF0tBMzA-;na">sip:PUBLIC-IP:52548;lr=on;ftag=as3b72a453;vsf=AAAAAAEECQkCAgsNAXBeL0NPXVQfU0suMTY5LjIzMQ--;vst=AAAAAAAAAAAAAAAAAABCUEIAX1lKWF5MF0tBMzA-;na</a></a><br>
yes><br>
Reason:
Q.850;cause=16<br>
Content-Length:
0<br>
<br>
<br>
<br>
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------<br>
<div>-----------------------------------------------------------------------------------------------------------------------------------------------------------------------<br>
<br>
</div>
<div>Finally,
It is finally
working
because I
hardcoded
NAT´d port.<br>
</div>
<div>I would
like to find a
way to avoid
setting the
port in
"hard".<br>
<br>
</div>
<div>Thank you<br>
</div>
<div><br>
</div>
<div><br>
</div>
<div><br>
</div>
<div><br>
</div>
</span></div>
</div>
</div>
</blockquote>
<br>
</div>
</div>
<span><span>
<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>
Book: SIP Routing With Kamailio - <a moz-do-not-send="true" href="http://www.asipto.com" target="_blank">http://www.asipto.com</a>
<a moz-do-not-send="true" href="http://miconda.eu" target="_blank">http://miconda.eu</a></pre>
</span></span></div>
<br>
<span>_______________________________________________<br>
SIP Express
Router (SER)
and Kamailio
(OpenSER) -
sr-users
mailing list<br>
<a
moz-do-not-send="true"
href="mailto:sr-users@lists.sip-router.org" target="_blank"><a class="moz-txt-link-abbreviated" href="mailto:sr-users@lists.sip-router.org">sr-users@lists.sip-router.org</a></a><br>
<a
moz-do-not-send="true"
href="http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users"
target="_blank"><a class="moz-txt-link-freetext" href="http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users">http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users</a></a><br>
<br>
</span></div>
<br>
</div>
</div>
</div>
</div>
</div>
</div>
<br>
_______________________________________________<br>
SIP Express
Router (SER) and
Kamailio
(OpenSER) -
sr-users mailing
list<br>
<a
moz-do-not-send="true"
href="mailto:sr-users@lists.sip-router.org" target="_blank"><a class="moz-txt-link-abbreviated" href="mailto:sr-users@lists.sip-router.org">sr-users@lists.sip-router.org</a></a><br>
<a
moz-do-not-send="true"
href="http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users"
rel="noreferrer"
target="_blank"><a class="moz-txt-link-freetext" href="http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users">http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users</a></a><br>
<br>
</blockquote>
</div>
<br>
<br clear="all">
<div><br>
</div>
</div>
</div>
<span><font
color="#888888">-- <br>
<div>
<div dir="ltr">
<div>Daniel-Constantin
Mierla - <a
moz-do-not-send="true"
href="http://www.asipto.com" target="_blank"><a class="moz-txt-link-freetext" href="http://www.asipto.com">http://www.asipto.com</a></a></div>
<div><a
moz-do-not-send="true"
href="http://twitter.com/#%21/miconda" target="_blank"><a class="moz-txt-link-freetext" href="http://twitter.com/#!/miconda">http://twitter.com/#!/miconda</a></a>
- <a
moz-do-not-send="true"
href="http://www.linkedin.com/in/miconda" target="_blank"><a class="moz-txt-link-freetext" href="http://www.linkedin.com/in/micond">http://www.linkedin.com/in/micond</a></a></div>
</div>
</div>
</font></span></div>
<br>
_______________________________________________<br>
SIP Express Router (SER)
and Kamailio (OpenSER) -
sr-users mailing list<br>
<a moz-do-not-send="true"
href="mailto:sr-users@lists.sip-router.org" target="_blank">sr-users@lists.sip-router.org</a><br>
<a moz-do-not-send="true"
href="http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users"
rel="noreferrer"
target="_blank">http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users</a><br>
<br>
</blockquote>
</div>
<br>
</div>
</div>
</div>
<br>
_______________________________________________<br>
SIP Express Router (SER) and
Kamailio (OpenSER) - sr-users
mailing list<br>
<a moz-do-not-send="true"
href="mailto:sr-users@lists.sip-router.org"
target="_blank">sr-users@lists.sip-router.org</a><br>
<a moz-do-not-send="true"
href="http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users"
rel="noreferrer" target="_blank">http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users</a><br>
<br>
</blockquote>
</div>
<br>
<br clear="all">
<div><br>
</div>
-- <br>
<div>
<div dir="ltr">
<div>Daniel-Constantin Mierla - <a
moz-do-not-send="true"
href="http://www.asipto.com"
target="_blank"><a class="moz-txt-link-freetext" href="http://www.asipto.com">http://www.asipto.com</a></a></div>
<div><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/micond</a></div>
</div>
</div>
</div>
</div>
</div>
<br>
_______________________________________________<br>
SIP Express Router (SER) and Kamailio
(OpenSER) - sr-users mailing list<br>
<a moz-do-not-send="true"
href="mailto:sr-users@lists.sip-router.org"
target="_blank">sr-users@lists.sip-router.org</a><br>
<a moz-do-not-send="true"
href="http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users"
rel="noreferrer" target="_blank">http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users</a><br>
<br>
</blockquote>
</div>
<br>
</div>
<br>
<fieldset></fieldset>
<br>
<pre>_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
<a moz-do-not-send="true" href="mailto:sr-users@lists.sip-router.org" target="_blank">sr-users@lists.sip-router.org</a>
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<br>
<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>
Book: SIP Routing With Kamailio - <a moz-do-not-send="true" href="http://www.asipto.com" target="_blank">http://www.asipto.com</a>
<a moz-do-not-send="true" href="http://miconda.eu" target="_blank">http://miconda.eu</a></pre>
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<br>
_______________________________________________<br>
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users
mailing list<br>
<a moz-do-not-send="true"
href="mailto:sr-users@lists.sip-router.org">sr-users@lists.sip-router.org</a><br>
<a moz-do-not-send="true"
href="http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users"
rel="noreferrer" target="_blank">http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users</a><br>
<br>
</blockquote>
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<br>
</div>
</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>
Book: SIP Routing With Kamailio - <a class="moz-txt-link-freetext" href="http://www.asipto.com">http://www.asipto.com</a>
<a class="moz-txt-link-freetext" href="http://miconda.eu">http://miconda.eu</a></pre>
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