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MOS value

ankushgoel_1986
Level 1
Level 1

‎02-22-2011 03:36 PM - edited ‎03-16-2019 03:36 AM

Hi

We have call manager running in China and US , when i am calling to China from US i am getting MOS value of 4.5 in China IP phone while MOS value of 2 in US IP phone, what could be the reason for this as voice quality is good on china side but not good at US side.Calls are travelling through our WAN network over Inter cluster trunks using g.711 codec.

Ankush

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Roman Rodichev
Level 7
Level 7

‎02-22-2011 10:31 PM

how are you measuring MOS? With IP SLA? IP SLA estimates MOS value based on the packet timers. High packet delay, dropped packets, or jitter will cause MOS to decrease.

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ankushgoel_1986
Level 1
Level 1
In response to Roman Rodichev

‎02-23-2011 11:17 AM

Hi

I checked the MOS value, that is displayed on the IP phone.

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Roman Rodichev
Level 7
Level 7
In response to ankushgoel_1986

‎02-23-2011 11:18 AM

what are the other values that the output shows to you?

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