<div dir="ltr"><div>Hello,</div><div><br></div><div>Every now and then we see long delay in response for options. Example in the trace below free-switch took 44 seconds before it send 200 OK. <br></div><div><br></div><div>What will be best way to troubleshoot this? </div><div><br></div><div>U 2019/11/25 10:49:27.185325 <a href="http://192.168.1.1:49020">192.168.1.1:49020</a> -> <a href="http://192.168.1.5:5060">192.168.1.5:5060</a><br>OPTIONS <a href="mailto:sip%3A100000@192.168.1.5">sip:100000@192.168.1.5</a> SIP/2.0.<br>Via: SIP/2.0/UDP 192.168.2.1:49020;branch=z9hG4bKhjhs8ass877.<br>Max-Forwards: 70.<br>To: <a href="mailto:sip%3A100000@192.168.1.5">sip:100000@192.168.1.5</a>.<br>From: sip:1000@192.168.2.1:49020;tag=cbzxq0.<br>Call-ID: <a href="mailto:hcrtfi@192.168.2.1">hcrtfi@192.168.2.1</a>.<br>CSeq: 1 OPTIONS.<br>Accept: application/sdp.<br>Content-Length: 0.<br>.<br><br>U 2019/11/25 10:49:51.819959 <a href="http://192.168.1.5:5060">192.168.1.5:5060</a> -> <a href="http://192.168.1.1:49020">192.168.1.1:49020</a><br>SIP/2.0 200 OK.<br>Via: SIP/2.0/UDP 192.168.2.1:49020;branch=z9hG4bKhjhs8ass877;received=192.168.1.1.<br>From: <<a href="http://sip:1000@192.168.2.1:49020">sip:1000@192.168.2.1:49020</a>>;tag=cbzxq0.<br>To: <<a href="mailto:sip%3A100000@192.168.1.5">sip:100000@192.168.1.5</a>>;tag=aUUQj55rcetma.<br>Call-ID: <a href="mailto:hcrtfi@192.168.2.1">hcrtfi@192.168.2.1</a>.<br>CSeq: 1 OPTIONS.<br>Contact: <sip:<a href="http://192.168.1.5:5660">192.168.1.5:5660</a>>.<br>User-Agent: Monitor.<br>Accept: application/sdp.<br>Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE.<br>Supported: path, replaces.<br>Allow-Events: talk, hold, conference, presence, as-feature-event, dialog, line-seize, call-info, sla, include-session-description, presence.winfo, message-summary, refer.<br>Content-Length: 0.</div><div><br></div></div>