400HD Series IP Phones
Administrator's Manual 174 Document #: LTRT-11973
9.4 Accessing System Information
9.5 Monitoring Quality of Experience
Network administrators can configure the phone to send Quality of Experience reports to a
QoE collecting server, such as the AudioCodes SEM server. This mechanism is
implemented using RTCP-XR (RTCP Extended Reports). These extended reports include
voice quality data events, such as Jitter Buffer, Packet Loss, Delay and Burst, which are
collected by the phone during the VoIP session.
When the SIP PUBLISH feature is enabled, upon the termination of the VoIP session e.g.
call disconnect or Hold states, values are calculated for each voice quality data event and
sent to the QoE server in a SIP PUBLISH message.
RTCP XR information publishing is implemented on the phone according to RFC 6035.
RTP Control Protocol Extended Reports (RTCP XR) is a VoIP management control that
defines a set of metrics containing information for assessing VoIP call quality and for
diagnosing problems. RTCP XR (RFC 3611) extends the RTCP reports defined in RFC 3550
by providing additional VoIP metrics for Quality of Experience.
9.6 Configuring Remote Voice Quality Monitoring
To report voice quality events from the phone to a Quality of Experience Server (QoE):
Configure the phone to retrieve RTCP XP events on voice quality data (see Section
9.6.1) -and-
Configure the phone to send SIP PUBLISH messages to the QoE server, including the
RTCP XP events described above and the SIP call messages (see Section 9.6.2).
To Next Page
Loading...
