Ive been on to 3 clients now and the ones with a E1 Pri have the option and are set to ISDN Node in the integrated Digital Access
And the the others are 4 x ISDN BRI and are set to BRI Node and have the option i attached, i guess it is only possible with PRI and across a E1
I have to check what the cost difference is and offer the solution.
Thanks x-man for your help