Using an ADSL2/2+ router with regular ADSL?

Using an ADSL2/2+ router with regular ADSL?

I am currently looking to replace my existing ADSL wireless router with a newer model. I have seen a lot of routers advertised as ADSL2/2+. I understand that ADSL2 and ADSL2+ offers faster speeds over regular ADSL, however my telephone line is not currently capable of ADSL2/2+ speeds.