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<div name="messageBodySection" style="font-size: 14px; font-family: -apple-system, BlinkMacSystemFont, sans-serif;">Got it, thanks.
<div><br /></div>
<div>Done with something alike</div>
<div>
<div><br /></div>
<div>route[RESTORE_CSEQ] {</div>
<div> if (isflagset(AUTH_DONE) && is_avp_set("$avp(original_cseq)")) {</div>
<div> remove_hf("CSeq:");</div>
<div> append_hf("CSeq: $avp(original_cseq) $rm\r\n", "Call-ID");</div>
<div> xlog("L_INFO", "[RESTORE_CSEQ]: [F=$fu R=$ru D=$du M=$rm IP=($si:$sp $Ri:$Rp) ID=$ci CSeq: $avp(original_cseq)"); </div>
<div> }</div>
<div>}</div>
<div><br /></div>
<div>route[INCREASE_CSEQ] {</div>
<div> if (isflagset(AUTH_DONE) && is_avp_set("$avp(original_cseq)")) {</div>
<div> $var(inc_cseq) = $(avp(original_cseq){s.int}) + 1;</div>
<div> remove_hf("CSeq:");</div>
<div><span class="Apple-tab-span" style="white-space:pre"></span> append_hf("CSeq: $var(inc_cseq) $rm\r\n", "Call-ID");</div>
<div> xlog("L_INFO", "[INCREASE_CSEQ]: [F=$fu R=$ru D=$du M=$rm IP=($si:$sp $Ri:$Rp) ID=$ci CSeq: $avp(original_cseq) -> $var(inc_cseq)"); </div>
<div> }</div>
<div>}</div>
</div>
<div><br /></div>
<div>And than - put these routes in necessary places.</div>
</div>
<div name="messageSignatureSection" style="font-size: 14px; font-family: -apple-system, BlinkMacSystemFont, sans-serif;"><br />
Regards, Igor</div>
<div name="messageReplySection" style="font-size: 14px; font-family: -apple-system, BlinkMacSystemFont, sans-serif;"><br />
On 26 сент. 2017 г., 19:51 +0300, Bogdan-Andrei Iancu <bogdan@opensips.org>, wrote:<br />
<blockquote type="cite" style="margin: 5px 5px; padding-left: 10px; border-left: thin solid #1abc9c;"><tt>Hello Igor,<br />
<br />
Right now OpenSIPs does not support increasing the cseq during UAC authentication. At the end this is a limitation of the a proxy versus a B2B :)<br />
<br />
Best regards,<br /></tt>
<pre class="moz-signature" cols="72">Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
<a class="moz-txt-link-freetext" href="http://www.opensips-solutions.com">http://www.opensips-solutions.com</a>
</pre>
<div class="moz-cite-prefix">On 09/25/2017 04:00 PM, Igor Olhovskiy wrote:<br /></div>
<blockquote type="cite" cite="mid:f47265df-fca8-4674-b14d-764db6e0d9bf@Spark" style="margin: 5px 5px; padding-left: 10px; border-left: thin solid #e67e22;">
<div name="messageBodySection" style="font-size: 14px; font-family: -apple-system, BlinkMacSystemFont, sans-serif;">Hi!
<div><br /></div>
<div>I’m trying to implement scenario, when OpenSIPS would be a proxy for IP auth SIP side and username/pass auth other side.</div>
<div>So, call scenario would be like</div>
<div><br /></div>
<div>1. A -> INVITE -> OpenSIPS B</div>
<div>2. A OpenSIPS -> INVITE -> B</div>
<div>3. A OpenSIPS <- 401 <- B</div>
<div>4. A OpenSIPS -> INVITE (auth) -> B</div>
<div>5. A OpenSIPS <- 200 <- B</div>
<div>6. A <- 200 <- OpenSIPS</div>
<div><br /></div>
<div>But the problem is in CSeq. On step 4, when sending INVITE with Auth CSeq should be changed from original (usually incremented), but on step 6, when replying back to A, it should be original.</div>
<div><br /></div>
<div>I didn’t found better solution, than to manually manipulate with CSeq with append/remove headers.</div>
<div>So, maybe there is more OpenSIPS - wise way of doing this?</div>
</div>
<div name="messageSignatureSection" style="font-size: 14px; font-family: -apple-system, BlinkMacSystemFont, sans-serif;"><br />
Regards, Igor</div>
<br />
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