Incremental QoS Updates
The Interim Quality of Service (QoS) Update setting, supported on the Acme Packet 4600 and the Acme Packet 6300, provides a more granular view of voice quality for troubleshooting by providing updates in 10 second increments. Without the Interim QoS Update setting selected, the Oracle® Enterprise Session Border Controller (E-SBC) probe provides an average Mean Opinion Score (MOS) only at the end of the call. A troubleshooter cannot see what occurred in other parts of the call. For example, suppose your employee or agent complains of poor voice quality that occurred in the middle of the call, but the average MOS score at the end of the call is 4.40. The troubleshooter might determine that the quality is acceptable, without knowing that the score in the middle of the call is 2.50. The Interim QoS Update setting provides MOS scores every 10 seconds, and with more granular data to help troubleshooting efforts. This feature is not supported on VNF.
Note:
The Incremental QoS Updates feature is not supported on VNF.The E-SBC provides the following data, per ten second interval.
- start + end time of the stream
- IP 5-tuple information to correlate to SIP sessions
- correlation information if available
- SSRC of the RTP stream (to be checked)
- Codec type
- Codec change information (if codecs changed)
The E-SBC provides the following data, per ten second chunk.
- jitter
- min/avg/max
- packet loss
- # of packets received
- # of packets lost
- Per RTP stream.
- In 10 second increments, where the increment starts on a full minute based on the NTP clock (not the start time of the stream).
- Intervals not covering the full 10 seconds do not return a MOS value.
