Router/modem that supports modem only mode?

[tasteslikefurby]

I'm an eejit and bought a router without a built-in modem. Now I need to sort myself out a modem. I'd use the pre-existing ADSL router/modem from my ISP, but it doesn't seem to support any sort of modem-only mode. Would you recommend me one that does?

 

[tasteslikefurby]

who are you with and what kind of connection is it (ADSL or cable)?

Ah, cheers for the response! It's ADSL, and I'm with EE.

 

[tasteslikefurby]

Would indeed be cheaper, but not an option cos China. I'm hoping to run a cheapo router/modem as a modem only... Hoping.