How to configure a cisco 1721 behind a siemens STU-4

Hello,

I am changing provider and the new provider delivers a Siemens STU-4 (network terminator)

They supplied a wan-address and a default gateway-address and also a /29 network range.

The current provider supplied a router and our router is connect back-2-back to this one. Can somebody help get started with this ?

Thanks