Can you ring an SLT with DKT's on a phantom (Say #505) even though you can't make the phantom appear on the SLT? If not is there a work around so that you can make an SLT ring with the phantom no.? We are using prog 71-73 with DNIS to ring #505 at night and they want a cordless to ring as well. It doesn't ring the SLT even though it's in prog *71.