Yealink SIP-T54S Administrator's Manual page 1014

Administrator's Guide for SIP-T2 Series/T19(P) E2/T4 Series/T5 Series/CP860/CP920 IP Phones
destination. Use traceroute to trace the full route to and from the target host.
To capture ping packets via phone user interface:
Press Menu->Features->Diagnostics->Network->Ping.
1.
Enter an IP address or a URL address (e.g., 10.2.20.148) in the Ping IP or URL field.
2.
Press the Start soft key to start a ping.
3.
The LCD screen displays as below:
Press
4.
back to the previous screen.
You can use the ping statistics information to check the network connection situation.
The following table shows the network connection situation and ping statistics:
Ping Statistics
4 packets transmitted, 4 packets
received, 0% packet loss
4 packets transmitted, 1, 2 or 3
packets received, 75%, 50% or 25%
packet loss
4 packets transmitted, 0 packets
received, 100% packet loss
If you find that the network connection between you and the target is unreachable, you can
trace route of the target to see where the problem is.
To trace route packets via phone user interface:
Press Menu->Features->Diagnostics->Network->Trace Route.
1.
Enter an IP address or a URL address (e.g., 10.2.20.148) in the Tracert IP or URL field.
2.
Press the Start soft key to start tracing the route.
3.
The LCD screen displays as below:
988
or to view more network status information or press the Back soft key to
Network Connection Situation
The network connection between you
and the target is strong.
The network connection between you
and the target is unstable or faulty.
The network connection between you
and the target is unreachable.