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.