<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Uwe,<div><br></div><div>It really depends on how strange is strange. Is this about routers that seem to block incoming SIP traffic? There is a topic about this on <a href="http://voip-info.org">http://voip-info.org</a> search for SIP ALG.<div><br></div><div>If is about something else maybe you can define strange and other people might help.</div><div><br></div><div>Adrian</div><div><div><br><div><br><div><div>On Apr 9, 2009, at 2:43 PM, Uwe Kastens wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div>Hello,<br><br>I am searching for a solution for some SIP Clients which are behind some<br>strange router. What is the best way to handle this? Send keepalive<br>messages from the router to the UA or force the UA to send keepalive<br>packages.<br><br>I think a can handle this by modparam("nathelper", "sipping_method",<br>"INFO")?<br><br>BR<br><br>Uwe<br><br>-- <br><br>kiste lat: 54.322684, lon: 10.13586<br><br>_______________________________________________<br>Users mailing list<br><a href="mailto:Users@lists.opensips.org">Users@lists.opensips.org</a><br><a href="http://lists.opensips.org/cgi-bin/mailman/listinfo/users">http://lists.opensips.org/cgi-bin/mailman/listinfo/users</a><br></div></blockquote></div><br></div></div></div></div></body></html>