Patent ID: 7653002

Claim:
A method, performed by one or more devices, for monitoring perceived quality of a packet-switched voice service in a network, comprising: receiving a plurality of packetized voice communications via the packet-switched voice service; obtaining at least one objective measurement from each of the received packetized voice communications; creating a test matrix from the objective measurements; providing an N dimensional reference matrix that mathematically models likely user perception of acceptable quality of voice service, the reference matrix being derived from a plurality of objective voice measurements known to affect user perception of voice quality, where N is greater than or equal to two; processing the test matrix to determine the quality of voice data over the packet-switched voice service, the quality of voice data over the packet-switched voice service being determined by comparing the reference matrix to the test matrix; and outputting information regarding the quality of voice data over the packet-switched voice service, where the receiving, obtaining, processing, and outputting are performed in substantially real-time.