Avaya MOS values for voice quality ?

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Avaya MOS values for voice quality ?

Hi all

 

could someone please explain which MOS value is for a good/fair/poor/unacceptable call in Avaya for Codec G.711 used.

 

higher 3.9 good ?

higher 3.6 fair ?

 

The same would be interesting for Latency /Jitter an packet Loss. When is a call degraded ?

 

Kind regards

Steffen

 

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2 REPLIES 2

Re: Avaya MOS values for voice quality ?

If its for Avaya RTCP, then the RTCP_MONITOR static conf contains the entries:

 

! My Configuration
! ======================================================================
DEFINE MOS_PROFILE ( #GlobalDefault, Good=4.0, Fair=3.6, Poor=3.0 )
DEFINE LATENCY_PROFILE ( #GlobalDefault, Good=50, Fair=100, Poor=150 )
DEFINE JITTER_PROFILE ( #GlobalDefault, Good=20, Fair=30, Poor=40 )
DEFINE PACKETLOSS_PROFILE ( #GlobalDefault, Good=1.0, Fair=5.0, Poor=10.0 )


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Thanks,
Shoaib

Re: Avaya MOS values for voice quality ?

Hello Steffen; This comes form the Configuration File RTCP_Monitor.CFG file - Here's the default values below - Anything less than 4.0 is Fair - 3.5 or less, poor, Etc. Hope this helps, they can be changed SUBSYS RTCP_MONITOR ! ! Call Quality of Service Configuration (RTCP) ! ---------------------------------------------------------------------- ! ! Call QoS is rated for: MOS, Latency, Jitter, Packet Loss ! Call QoS is rated as: Good, Fair, Poor & Unacceptable ! ! Align the QoS settings with your service levels objectives ! ! Rating Service Level ! ------ ------------- ! Good optimal ! Fair normal / expected ! Poor in danger of breaching ! Unacceptable in breach ! ! NOTE: QoS is rated as Unacceptable when the value ! is worse than the configured setting for Poor. ! ! For additional information, see the end of this document. ! ! My Configuration ! ====================================================================== DEFINE MOS_PROFILE ( #GlobalDefault, Good=4.0, Fair=3.6, Poor=3.0 ) DEFINE LATENCY_PROFILE ( #GlobalDefault, Good=50, Fair=100, Poor=150 ) DEFINE JITTER_PROFILE ( #GlobalDefault, Good=20, Fair=30, Poor=40 ) DEFINE PACKETLOSS_PROFILE ( #GlobalDefault, Good=1.0, Fair=5.0, Poor=10.0 ) ! ====================================================================== ! !
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