CC7 Unable to add phoneset

[mv114]

Hello all..

Having trouble adding phoneset in configuration. Once I populate the fields and click next grid to add next phoneset I get the following error.

Update Failed. Phonesets/Voice Port ********* could not be updated.
Error -2147221499. The system is unable to complete the desired action [5]
Source: IcePhoneSet. PhoneSet.1


Any thoughts?
Thanks in Advance

 

[DFKSydney]

Have you set the AST value/s against the set tn?