<p></p>
<p dir="auto">At first look, this is not about async processing, but only suspending the transaction before doing the rtpproxy control command. There is no passing of a task to some async worker, nor resuming the transaction.</p>
<p dir="auto">Practically your code does something like:</p>
<pre class="notranslate"><code class="notranslate">t_suspend();
rtpengine_offer()/_answer()/_delete();
</code></pre>
<p dir="auto">Maybe you can just to use <code class="notranslate">async_task_route()</code> for INVITE:</p>
<ul dir="auto">
<li><a href="https://www.kamailio.org/docs/modules/stable/modules/async.html#async.f.async_task_route" rel="nofollow">https://www.kamailio.org/docs/modules/stable/modules/async.html#async.f.async_task_route</a></li>
</ul>
<p dir="auto">And use the rtpengine functions in the target routing block. It looks like what you want to implement inside rtpengine module, but you can achieve that by using async module.</p>

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