Hello, 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. What will be best way to troubleshoot this? U 2019/11/25 10:49:27.185325 192.168.1.1:49020 -> 192.168.1.5:5060 OPTIONS sip:100000@192.168.1.5 SIP/2.0. Via: SIP/2.0/UDP 192.168.2.1:49020;branch=z9hG4bKhjhs8ass877. Max-Forwards: 70. To: sip:100000@192.168.1.5. From: sip:1000@192.168.2.1:49020;tag=cbzxq0. Call-ID: hcrtfi@192.168.2.1. CSeq: 1 OPTIONS. Accept: application/sdp. Content-Length: 0. . U 2019/11/25 10:49:51.819959 192.168.1.5:5060 -> 192.168.1.1:49020 SIP/2.0 200 OK. Via: SIP/2.0/UDP 192.168.2.1:49020 ;branch=z9hG4bKhjhs8ass877;received=192.168.1.1. From: <sip:1000@192.168.2.1:49020>;tag=cbzxq0. To: <sip:100000@192.168.1.5>;tag=aUUQj55rcetma. Call-ID: hcrtfi@192.168.2.1. CSeq: 1 OPTIONS. Contact: <sip:192.168.1.5:5660>. User-Agent: Monitor. Accept: application/sdp. Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE. Supported: path, replaces. Allow-Events: talk, hold, conference, presence, as-feature-event, dialog, line-seize, call-info, sla, include-session-description, presence.winfo, message-summary, refer. Content-Length: 0.