Yealink T40G Administrator's Guide

Troubleshooting
571
Ethernet Software Capturing Configuration
You can choose to capture the packets using the Ethernet software in two ways:
 Receiving data packets from the HUB: Connect the Internet port of the IP phone and the PC to the
same HUB, and then use Sniffer, Ethereal or Wireshark software to capture the signal traffic.
 Receiving data packets from PC port: Connect the Internet port of the IP phone to the Internet and
the PC port of the IP phone to a PC. Before capturing the signal traffic, make sure the IP phone can
span data packets received from the Internet port to the PC port.
Topic
Span to PC Port Configuration
Span to PC Port Configuration
The following table lists the parameter you can use to configure span to PC port.
Parameter
static.network.span_to_pc_port
[1]
<y0000000000xx>.cfg
Description
It enables or disables the IP phone to span data packets received from the WAN port
to the PC port.
Note: It works only if “static.network.pc_port.enable” is set to 1 (Auto Negotiation).
Permitted
Values
0-Disabled
1-Enabled, all data packets from Internet port can be received by PC port.
Default
0
Web UI
Network->Advanced->Span to PC->Span to PC Port
[1]
If you change this parameter, the IP phone will reboot to make the change take effect.
Watch Dog
The IP phone provides a troubleshooting feature called “Watch Dog”, which helps you monitor the IP

Yealink T40G Specifications

General

SIP Accounts	3
Wall Mountable	Yes
Opus Codec	No
Display	2.3 inch 132x64-pixel graphical LCD
Network	Dual-port Gigabit Ethernet
PoE	Yes
Headset Support	Yes, RJ9 port
Power Adapter	Optional
Voice Codecs	G.722, G.711(A/μ), G.729AB, G.726
Local Phonebook	1000 entries