NS margin / voice margin

[SirPeterIII]

Hi,

I have a question.

On an adsl connection it is important to have a ns margin / voice margin higher then 6.

Is there a tool somewere that can calculate the max margin possible?

[mudmanc4]

I think you mean "SN ratio "  ?    If this is so, then this is something that is telling you the line quality.

[SirPeterIII]

SN ratio thats correct. And I see i made another typo. Voice margin is noise margin.

I wanted to see what the maximum quality could be. The quality is ok here considering I have voice over IP with a ISDN/annex B

SN-marge 8,5

Line Attenuation18,5 / 27,5

So if anyone know a tool

[Roco]

your ATT looks good , Short line , the SNR is fixed by as it says by the noise on the line ,

there are tools that can change the SNR , all they do is hoodwink the Dslam  at the exchange , 8.5 is a little low , in the UK it's normaly around 12-15 dB ,

depending on your router  there is a tool to raise it to +20db , but that causes a decrease in sync speed , most folk are going the other way to 8-9dB for increased speed ,

I can haul mine down to 6dB , but the packet loss becomes so high it ain't worth it ,

another aspect of low SNR  can be  internal house wiring ,

Sorry I can't help with voice over IP with a ISDN/annex B  , ( no experience )