I recently installed my parants new 256/64 kbps ADSL service at their home. Now i have to buy another 2 filters for the 2 PHONES that they have in other rooms and was wondering if i should buy two ADSL 2/2+ filters instead of the normal ADSL ONES, so if and when they update their internet service from ADSL to ADSL 2/2+, they wont have to update and buy new filters aswell.
So my question's are,
1. Do you guys think that this is a good idea ?
and
2. Are ADSL 2/2+ filters compatible with normal ADSL?
Thanks for your help. I don't know.  I have DSL and have filters but never had to buy any of them.  They were provided by my ISP, along with the DSL modem.     Are you sure the ISP does not provide filters?

BTW, 256/64 kbps is not very good speed for DSL.  Is that the best they can GET in their area?  How much does it COST?

Edit: I'm under the impression the ADSL 2/2+ applies to modems but not filters.  In other words, the filters are the same, whether regular ADSL or ADSL 2/2+.  Can you cite PROOF that special ADSL 2/2+ filters are needed?