TD 92685EN
28 June 2012 / Ver. A
Troubleshooting Guide
Ascom i62 VoWiFi Handset
38
5. The VoWiFi Handset as
WLAN Connectivity Statistics
WLAN statistics are cumulative from boot or from the last time the statisti
cs were reset. The
statistics return the following information about the number of transmitted and received
RTP packets:.
RX packets The number of RTP packets received.
RX bytes The total number of bytes in the received RTP packets
RX dropped The number of received RTP packets dropped.
TX packets The number of RTP packets sent.
TX bytes The total number of bytes in the sent RTP packets
TX dropped The number of sent RTP packets dropped.
Performing a WLAN Test
The following example illustrate how to use the handset web interface to check various
statistics that m
i
ght give an indication as to why WLAN problems are being experienced:
1 Start the handset web interface as described i
n steps 1 to 5 in the section 5.4
Handset Web Interface on page
36.
2 Select the Stat
istics tab, WLAN option. The WLAN Connectivity Statistics pane is
displayed.
Note: The statistics display cumulative totals. To reset
the values to zeros, click the
Reset button.
3 Connect a call from one handset to another. On
e of the handsets must be the handset
with the IP address used to open the handset browser.
4 Complete the call but do not hang up.
5From the V
o
ice Statistics pane click the Refresh button and make a note of the WLAN
statistics. You may now hang up.
6 Inspect the values of the statistics displayed in respect of the test you are
perform
ing. The following table illustrates some tests and conclusions that you could
make from the values returned:
Test Description
Voice Packet Loss Verify that the Rx Voice
Pa
cket Loss statistic is reasonable, that
is, less than ~5% for a LAN.
5.4.3 Tools Tab
The Tools tab provides the Ping and Traceroute utilities
Ping
Ping is used to test whether or not a host on an I
P
network can be reached and to measure
the round-trip time for messages sent from the originating host to a destination such as an
IP PBX, Unite server, router or a handset.
To run Ping, select Ping from the To
ols pane and enter the IP address of the destination. The
results of the ping is statistical summary of the response packet received and the round-trip
time taken for the packet in the message to be sent and received. For example:
Reply from ::ffff:10.30.32.166: bytes=32 time=28ms TTL=127
The destination IP is pinged ten times.
The following output indicates that the d
evice
has not been reached:
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