Customer case 11The site that dragged the quality score down

The quality pages pointed at one WAN link instead of "the phones".

1
Situation
Operations Reporting showed POOR calls stable overall, but one branch at the top of the sites with the most poor calls – and its share up against the previous month.
2
What the data showed
Filtering the quality pages by that site put every degraded call into the same hours of the day in the day-by-hour heat map, across every device type.
Location quality · calling IPs without a site · sites with the most poor calls
CUCM · call quality overview
3
Resolution
That moved the ticket from telephony to networking, where a QoS misconfiguration on the branch WAN link was found.

Situation