Could enabling the annexe mode M with adsl2+ will result in increase the upload speed,

[rajujayaraman]

Hi, please answer,
if i enable adsl2+, annexe L and annexe M, my upload speed will increase somewhat
I heard that selecting annexe M, would give you slight increase in upload speed, but also reduce the download speed.
If i suppose, enable this , then how much speed in mbps would i gain as increae
If i suppose enable this, , what mbps of speed i would experience in total download speed.
Will i experience any increase in upload or is totally controlled by the ISP

will there be more than 1/2 decrease in download speed.
Then why this M is there in router set up

 

[rajujayaraman]

Hi, could not you increase the upload speed with Annexe M with adsl2+ mode?
Are the plan speed controlled by the ISP, and could you not change the upstream speed by settings in the adsl in router.

 

[varkey]

Yes, it's controlled by the ISP, and I don't think settings on the modem would help much.