The 300-6032-002 is the 8-Port analog card for the UK. I assume you have a Nortel switch if you are talking about the NPIC card. That card emulates a 2616 type of phone so it isn't a direct replacement. You would also need to have PIC licenses turned on with the NPIC16. You could also possibly use an 300-6054-002 DLC-16E which is a 16-port analog card for the UK. With the DLC-16E card you would need to have DSP licenses turned on.
Unless price isn't a factor, I would check to see what the cost difference is between using the NPIC 16 and the DLC-16E.
I know that the company I work for has DLC-16E's in stock, so I assume that they are probably more commonly available card than the 8E card.
Chuck
RCT Technologies