Multiple entries in Calling-Station-Id

We using Windows 2003 IAS, Radius, Active Directory and CLI to authenticate remote field staff who make a dial-up network connection.

The trouble we are having is that the business are insisting that field staff have the ability to dial-up using different numbers (depots, home, etc...)

We are currently unable to authenticate against more than 1 number entered in Calling-Station-Id. We have tried enclosing the numbers in quotes and separating them with a comma, but it still doesn't work.

It's reached hair pulling out time !

Thanks in advance

Simon Kirkham