In reply to a post by amci:

I assume W AD V gave TI AR7 for Near End and 0 or some such for Far End (the MSAN/DSLAM).

It just gave TI AR7 for the near end and nothing at all for the far.

In reply to a post by amci:

If you just got the command options list from W AD FAR, then your router didn't recognise W AD FAR at all... just the W AD part.

Looks as if that's the case. I have a feeling the commands are slightly different for mine - a 662H. I'm pretty sure there is such a command, it's just that I can't find it

Thanks for the information. I'll have another rummage through the commands to see if anything presents itself.