<p dir="ltr">I bought the book and I think I found the first mistake, in the initial invite packet on page 11, the contact header is of the destination and not of the origination UAC</p>
<div class="gmail_quote">On Feb 4, 2016 3:37 PM, "Bogdan-Andrei Iancu" <<a href="mailto:bogdan@opensips.org">bogdan@opensips.org</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hello all,<br>
<br>
Flavio Goncalves and I are happy to announce the publishing of the second edition of "Building Telephony Systems with OpenSIPS", covering OpenSIPS version 2.1 .<br>
<br>
Also many thanks to the Packt Publishing house for making it happened and to all our reviewers who help us to make this book better.<br>
<br>
<a href="https://www.packtpub.com/networking-and-servers/building-telephony-systems-opensips-second-edition" rel="noreferrer" target="_blank">https://www.packtpub.com/networking-and-servers/building-telephony-systems-opensips-second-edition</a><br>
<br>
Enjoy !<br>
<br>
-- <br>
Bogdan-Andrei Iancu<br>
OpenSIPS Founder and Developer<br>
<a href="http://www.opensips-solutions.com" rel="noreferrer" target="_blank">http://www.opensips-solutions.com</a><br>
<br>
<br>
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</blockquote></div>