hi,<br><br>I encountered following error.<br><br>I have two user agents register under the same uid.<br>When there is an invite request both ua&#39;s ring.<br>When one of them UA1 answers the call, by sending 200 response<br>
some strange error occurs.<br><br>UA1&#39;s 200 response is immediately sent to UAC who initiated a call.<br>after this ser sends cancel message to other UA2.<br>The other UA2 responses with 200 to the cancel message and sends response to the 
<br>initial invite: 487 Request Terminated.<br>After this ser should response with ACK to the second UA2&nbsp; but it isn&#39;t instead it<br>forwards 487 response to UAC who sent the initial invite.<br><br>Please tell why ser behaves this way?
<br>What could be the reason for such behavior?<br><br>Regards<br>Tomasz<br>