21 PESQ
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ARGUS 152
21 PESQ
To objectively assess voice quality, ARGUS performs a Perceptual Evaluation of Speech
Quality (PESQ) analysis according to ITU-T P.862 directly on an ISDN, POTS, xDSL or on
Ethernet. The PESQ test is only available for interfaces that have previously been enabled
(e.g. ISDN option).
The PESQ analysis is not performed by ARGUS directly but by a PESQ server, which has
its own telephone number. ARGUS is connected directly to the subscriber access and
loops a standardised voice recording to the server.
To assess the talker side, ARGUS transmits the voice recording to the server, which returns
the calculated PESQ value to ARGUS. ARGUS shows the PESQ value directly in the
display.
To assess the talker and listener sides, the voice recording is initially sent from the server to
ARGUS, then looped back to the server.
21.1 PESQ configuration
ARGUS in Main Menu
Use the cursor keys to select the
parameter (in this example Mode).
Select using the cursor keys (e.g. ARGUS
Loop).
The entire network to be tested including all its gateways and other
components must be RFC2833-compliant.
ARGUS adopts the marked
setting.
ARGUS switches to the next
higher-level menu without
saving the altered parameter.
Settings
PESQ
ARGUS loop
