<p><b>@gaaf</b> commented on this pull request.</p>

<hr>

<p>In <a href="https://github.com/kamailio/kamailio/pull/1243#discussion_r140628649">src/core/dset.c</a>:</p>
<pre style='color:#555'>> @@ -595,6 +598,17 @@ static int print_contact_str(char **dest, str *uri, qvalue_t q, str *path, char
                memcpy(p, buf.s, buf.len);
                p += buf.len;
        }
+
+       /* branch flags (not SIP standard conformant) */
+       buf.s = int2str(flags, &buf.len);
+       if (p + FLAGS_PARAM_LEN + buf.len > end) {
+               return -1;
+       }
+       memcpy(p, FLAGS_PARAM, FLAGS_PARAM_LEN);
+       p += FLAGS_PARAM_LEN;
+       memcpy(p, buf.s, buf.len);
+       p += buf.len;
</pre>
<p>Patch 4 makes this optional.</p>

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