User's Manual

18 Manual tests 68
7signal Ltd, Panuntie 6, FI-00620 HELSINKI, FINLAND, [phone], [e-mail], www.7signal.com
7signal Sapphire Carat Carat User Guide Release 3.1
18.13.1 MOS test parameters
1. Select the initial display format for the results (Table/Graph)
2. Select the direction of the test (Downlink/Uplink)
3. Select the codec to be used in the test (VoIP Codec):
a. G.711 PCM Linear 16 = 64 kbit/s
b. G.729 GSM data = 8 kbit/s
4. Select an optional error correction method (Stream FEC)
5. Configure sender information:
a. Enter a port for the MOS test (Local port)
b. Enter the test duration in seconds (Send time)
c. Enter the packet interval in milliseconds (Stream interval)
d. Enter the packet size in bytes (Packet size)
e. Enter the sampling window size in seconds (Sampling interval)
6. Configure the receiver information:
a. Enter a port for the MOS test (Receiver port)
b. Enter the receiving window size in seconds (Window size)
c. Enter the sampling interval in seconds (Sampling Interval)
d. Enter the size of the dejittering buffer (Dejittering Buffer)
e. Enter the connection timeout in milliseconds (Timeout)
7. Enter the traffic class (licensed feature only)
8. Select “Execute”
9. The results are displayed in a new window in the selected format
18.13.2 MOS Test Result
Sample result set: