Ok guys, I was able to get out to the customer and try this and think it may be a limitation on the system or something. If I program the PhDN on the phones I can call the PhDN and they all ring but when I set *81 and *87 to have the CO ring to the PhDN it only flashes on the phones and does not ring.

The only way that I can get the CO line to ring is to use prg 81 and 87 to enable ringing on the phones but if I allow the CO line to ring on more than one of the phones the call forward to VM quits working.

I'm stumped...