I didn't seem to need the 2nd line. It seemed to break any DID number I put against it, returning a "603 Declined" from asterisk to my ISP. Not sure what that's all about.
I only wanted one DID number to pop-up in Mediaportal, so I just put my DID number into the first line as you described.
Many thanks, exactly the tip I needed.
That 2nd line is for the 1.6.x asterisk servers, with the stdexten macro. Guess it doesn't work in some of the other distributions, glad it works for you.