Mitel 6867i Administrator's Manual page 64

Mitel 6800 Series SIP Phone Release 4.2.0 Administrator Guide
HEADING
Capture
2-13
DESCRIPTION
Tcpdump network packet capture functionality is natively available on the
phones. Administrators can start/stop packet capturing, configure capture
ports, set how long the capture should last, and retrieve the capture file
through the Capture page.
For more information on this feature, see Chapter 9, the section
"Tcpdump Network Packet Capture Support"
(Applicable to Administrator Only)
on page 9-19.