Can someone from Cisco confirm this officially? Is the chipset in the Cisco 1801/K9 and the Cisco 1801-M/K9 completely different hardware?

According to STMicroelectronics website, the 20190 chipset is multistandard and supports G.992.5 annex A, B, I, J, M. The 20184 which forms part of the 20190 chipset is supposed to have switchable cut-off frequencies for Annex A and Annex M - see attached datasheets. Could an upgrade to the firmware achieve this?

It would be very useful to be able to do this, as I could then take advantage of higher upload speed, without having to buy new hardware or use SDSL.

Thanks

Nick

Independently from the technicalities of the issue being discussed, I would like to ask the person that low rated my post, to explain the reason why, as I stated the simple truth and should not bear responsibility for an unpleasant situation on which I have zero influence.

Apologies - no offence intended, I'm new to the forums. I rated 2 which equals to "Somewhat useful", which is what I genuinely thought your post was.

No offense is taken, unfortunately my post 100% answered your question, in short "no upgrade is possible". In light of that, '2' is not fair, better would bem no rating at all then.

Good luck anyway!