AudioCodes 420HD - Configuring Voice Quality Monitoring

400HD Series IP Phones
Administrator's Manual 250 Document #: LTRT-11950
 To configure RTCP_XR working mode using the configuration file:
• Use the table below as reference.
Table 45-1: RTCP_XR Parameters
Parameter Description
RTCP-XR Voice Quality Statistics Mode
[voip/rtcp_xr/vq_statistics/mode]
Sets RTCP_XR working mode.
Select either:
 [DISABLE] (default). In this state, no RTCP events
are retrieved from the phone and the SIP PUBLISH is
not sent, regardless of the state of parameter
'qoe_publish_enabled' (see below).
 [EVENTS_ONLY]. In this state, RTCP-XR events
with voice quality parameter calculations are sent
internally on the phone every five seconds. Each
calculation is made on the basis of these RFC 3611
parameters: BT=7, block length = 8SSRC of source,
loss rate, discard rate, burst density, gap density,
burst duration, gap duration, round trip delay, end
system delay, signal level, noise level, Gmin, R
factor, ext. R factor, MOS-LQ, MOS-CQ, RX config,
JB nominal, JB maximum and JB abs max. In
addition, when the SIP PUBLISH is enabled (see
Section 45.1.2), at the end of the VoIP session, the
summarized RTCP-XR events are sent to the
configured QoE server in a SIP PUBLISH message.
 [REMOTE_AND_EVENTS]. In this state, the phone
sends RTCP-XR events to the remote calling party
(i.e. party A sends these events to party B) every five
seconds during the VoIP session. In addition, when
the SIP PUBLISH is enabled (see Section 45.1.2) at
the end of the VoIP session, the summarized
RTCP-XR events are sent to the configured QoE
server in a SIP PUBLISH message.
45.1.2 Configuring Voice Quality Monitoring
You can set up the phone to report SIP PUBLISH messages to a remote QoE server.
 To configure voice quality monitoring using the configuration file:
• Use the table below as reference.
Table 45-2: Voice Quality Monitoring Parameters
Name Role
[/voip/qoe/qoe_publish_enabled]
Determines whether or not to send PUBLISH messages
(Default-0).
[/voip/qoe/qoe_server_address]
Sets the QoE server address/hostname to which PUBLISH
messages will be sent (Default-0.0.0.0).
[/voip/qoe/qoe_server_port]
Sets the port to which the PUBLISH messages will be sent
(Default-5960).
For a full lising of RTCP XR parameters that may be sent to the QoE server, see Appendix G.
For example SIP PUBLISH messages, see Appendix H.