Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

Annex M Backwards compatible

Hi, I have a ADSL 2+ (20M/800K) with a router Zyxel P660R. I want to change the router for a Cisco Router and I'd like to buy an Annex M (887M for example), so in the future I can use this router. Can I use the 887M with ADSL, ADSL2, ADSL 2+, Annex A? or it is only compatible with ADSL 2+ Annex M?

Thanks

10 REPLIES
Hall of Fame Super Gold

Re: Annex M Backwards compatible

You can use it with all the standards you mentioned. Annex M is just an option decided by telco..

New Member

Re: Annex M Backwards compatible

So, if I'm not sure what ADSL I will have in the future, the best  option is to buy Cisco 887M because it has all ADSL options, isn't it?

Hall of Fame Super Gold

Re: Annex M Backwards compatible

Not said, in some countries Annex M will never be introduced. It's a local telco decision.

New Member

Re: Annex M Backwards compatible

sorry, then the 887M is  the best option because it supports all kinds of ADSL, so with it I can not go  wrong with the choice of router. Will work with all. With one ISP with the other, ... Right?

Hall of Fame Super Gold

Re: Annex M Backwards compatible

Again, depends on where you are. You may find that distributors do not carry the M type your country, because local telco do not support it.

New Member

Re: Annex M Backwards compatible

Thanks. But I say 887M is the best option (if you can pay for it) because if now my telco do not carry Annex M, I can connect with the 887M with AnnexA and if in the future my telco carry Annex M (or I change my ISP) I can connect wit 877M too (with Annex M or not). Right? But If now I buy a 887 (without Annex M), now I can connect to my telco, but if I want to change to a telco with Annex M in th future I will have to buy another router. Right?

Hall of Fame Super Gold

Re: Annex M Backwards compatible

Have you verified that 877M is avaialble for you to buy?

Find and report.

New Member

Re: Annex M Backwards compatible

I have not yet verified (I'm in process). Why say that? Is  it hard to find?
Anyway, do you agree to my previous  statement?

"But I say 887M is the best option (if you can pay for it) because  if now my telco do not carry Annex M, I can connect with the 887M with  AnnexA and if in the future my telco carry Annex M (or I change my ISP) I  can connect wit 877M too (with Annex M or not). Right? But If now I buy  a 887 (without Annex M), now I can connect to my telco, but if I want  to change to a telco with Annex M in th future I will have to buy  another router. Right?"

Am I right?

Hall of Fame Super Gold

Re: Annex M Backwards compatible

Are you in the UK?

At the moment, Cisco doesn't support Annex M in the UK,

I woudl appreciate if you could avoid rating in the middle when what I'm telling you 100% correct.

New Member

Re: Annex M Backwards compatible

Sorry, I'm not in UK

Thanks

1020
Views
28
Helpful
10
Replies