QUOTE (YorkshireLad6 @ Jul 15 2008, 5:32 pm)

...or Telekom Speedport router mode ending in "V" (for example) then it will do the conversion for you...
not all Speedport ***v routers can be plugged into ISDN lines - e.g. the W501V is only for analogue. If you go this route then be sure to check the exact specs (or the instruction manual) of the model you're looking to buy.