Finding SIP traffic in logviewer - how?

Question

Hi folks, 
 I am investigating why one of my VoIP phones has failed. I have searched logviewer and its many sub-menus and not able to find any SIP traffic (UDP port 5060) or even using the ATA's IP address. 
 Please advise how I find the SIP traffic? 
 Ian

Wayne Folta · Answer

It's possible that SIP is being handled differently because of the SIP ALG, if you have that on? 
 I have my SIP devices on a separate Port (and VLAN) and can see in the log viewer their queries for DNS and NTP. (Which all hit the same firewall rule that allows CoIP VLAN/Port traffic to the Internet. Don't see anything else in logs. 
 But if I do a packet capture using the device's IP address, I definitely see TCP traffic flowing between the phone and the VoIP provider's port 5090.

Finding SIP traffic in logviewer - how?

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