This is weird. I have a customer with a ACS rel 4, and a PC card large VM. Every 3rd time you access the voice mail, 777, it goes through. The rest of the time it just rings. I reseated the card, checked the programming and you can always access the vm extensions, 78 and 79 directly.

Did you make 100% sure that 78 and 79 are the ONLY exts in 505?

That could be, he had an old partner mail. I'll check today

That was it, one of my techs didn't take out the old extensions from the vm group. I didn't even think of this because it's been changed for 8 months and they never said anything. Thanks