VeEX’s PESQ Server brings the power of ITU-T P.862 PESQ algorithm to live network field testing. VeEX’s PESQ Server accepts up to 50 simultaneous connections from compatible VeEX VePAL 300 or 100+ series products.

 

Server software allows the user to assess voice quality measurements under live network conditions measuring impact from distortions from all sources: voice codecs, packet loss, latency, jitter, bandwidth congestion.

 

Bi-directional PESQ MOS (Mean Opinion Score) and other critical network related parameters are measured in under a minute. Test results are displayed on both field test units and the PESQ Server software, and can be saved and retrieved for future reference and benchmarking.

 

 

VeEX PESQ Server Specifications:

• The VeEX PESQ sever can be installed on any PC server hardware

• SIP configuration Assessment of the speech quality according to PESQ (ITU-T Rec P.862) of up to 50 concurrent or serial connections

• Peer-to-peer mode and proxy mode SIP protocol to establish connections

• Support of the most common audio codecs (G.711A, G.711u, G.723.1 and G.729)

• GSM, G.722, G.721, iLBC, G.726 * (check with factory for availability)

• Prioritization: VLAN tagging, DiffServ, TOS

• Extensive connection list and advanced connections details

• SNMP trap or email generation can be configured to automatically alert network managers of low call quality based on user configurable thresholds

• Powerful reporting tool can be used to track voice quality trends over time for network benchmarking or SLA tracking

 

Quality measured during PESQ is indicated by a “flag“:

• Red: 0-2.33

• Yellow:2.33-3.66

• Green:3.66-4.50

 

 

A detailed connection report is also generated:

 

 

Voice Quality Trend Analysis:

Post processing tools allow trending analysis over time.

 

 

Procedure:

Place VoIP to PESQ Server.

 

 

Upstream, Roundtrip and Average voice quality measurement is displayed.