[Freeswitch-users] how to capture packets of siptrace?

[Jack Nikolas]

hi all,
in conf.back/sip_profiles/internal.xml  configuration
i have enabled two options as below:
<param name="sip-trace" value="yes"/>
<param name="sip-capture" value="yes"/>

but how can i capture packets when user is want to register sip client or making calls or logout or transfer, etc ?
i want the following content
?

recv 529 bytes from udp/[85.15.7.6]:23944 at 08:48:58.358101:
   
   SUBSCRIBE sip:XXXXXX
   Via: SIP/2.0/UDP XXXX:23944;branch=z9hG4bK-d8754z-7d25245fc51dd824-1---d8754z-;rport
   Max-Forwards: 70
   Contact: XXXX
   To: XXXXX
   From: XXXXX
   Call-ID: ZjE3ZGMyNTBhODI5NTU0Y2RmZmMwYTY4ODQ2NDJjNzQ.
   CSeq: 4 SUBSCRIBE
   Expires: 0
   User-Agent: eyeBeam release 1102q stamp 51814
   Event: message-summary
   Content-Length: 0
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