<div dir="ltr">Hi Johan,<div><br></div><div>The first 183 packet that is received has no SDP in it and has:</div><div><br></div><div>Require: 100rel<br></div><div><br></div><div>I wish to prevent this from being passed on, but still respond what with a PRACK (since 100rel has been requested). The reason for this is that our system will not work if it first receives a 183 without SDP and then receives a second 183 with SDP.</div><div><br></div><div>Thank you.</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, 18 Jan 2021 at 16:13, Johan De Clercq <<a href="mailto:Johan@democon.be">Johan@democon.be</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div>you mean that the remote party sends you required:100rel ? The only way that I know is by using b2b logic. <br></div><div>Maybe Bogdan can shed some light here. <br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">Op ma 18 jan. 2021 om 17:07 schreef solarmon <<a href="mailto:solarmon@one-n.co.uk" target="_blank">solarmon@one-n.co.uk</a>>:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Hi,,<br><div><br></div><div>I have a requirement to stop 183 without SDP packets from being passed, as well as having to reply back with a PRACK.</div><div><br></div><div>I can stop the 183 without SDP from being passed on with the following in onreply_route[]</div><div><br></div><div> if ($rs == "183" && !has_body_part("application/sdp")) {<br> drop();<br> exit;<br> }<br></div><div><br></div><div>However, how do I reply back with a PRACK?</div><div><br></div><div>Thank you.</div></div>
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