FWIW, my ISP (Plusnet) tell me that at the moment, an engineer's site visit is definitely required for FTTC connections as BT will NOT reset anything on an ISP's request.
However, they did also add that they have been informed by BT that this is likely to change in the not too distant future, with the very slight possibility that ISPs can actually press the reset button, somewhat similar to how they can reset ADSL connections at the moment.
However, not all visiting engineers will request a reset, some have even refused to do so.
One engineer tried his hardest to get my connection reset, but the remote centre where this is done refused, leaving me at that time with a capped 25Mb sync speed.
Following re-syncs / reboots, my attainable rate usually starts off at around 35Mb, but I cannot actually sync any higher than around 29.3Mb to 29.9Mb (at best).
This makes me think that if there are no longer any physical faults on my connection, it must be a cap controlled by BT's remote centre.
Although the latest engineer did improve matters by replacing a section of external drop wire, he also refused to request a reset.
My ISP can't tell me whether or not BT are currently capping my sync speeds as BT apparently REFUSE to tell them.
So, it all seems to be very much the luck of the draw in these matters
My ISP can & often does control throughput for FTTC connections (traffic management at peak periods, exceeded monthly download allowances etc.)
Edited by Bald_Eagle1 (Sun 29-Jan-12 11:18:54)