<p>In modules/call_control/call_control.c:</p>
<pre style='color:#555'>&gt; @@ -406,6 +411,22 @@ struct module_exports exports = {
&gt;      return value.s;
&gt;  }
&gt;  
&gt; +// Get SIP application type
&gt; +static str
&gt; +get_sip_application(struct sip_msg* msg)
&gt; +{
&gt; +    int_str value;
&gt; +
&gt; +    if (!search_first_avp(sip_application_avp.type | AVP_VAL_STR,
&gt; +                          sip_application_avp.name, &amp;value, NULL) ||
&gt; +        !value.s.s || value.s.len==0) {
&gt; +
&gt; +        value.s.s = &quot;audio&quot;;
</pre>
<p>Lets use "" as the default value. It's easy enough for anybody to set it in the config script.</p>

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