I don't think these questions warrant snarky responses.
"1) What type of trunks, extension and phone model? - PRI Trunk, and last I checked a VPN phone could only be IP, 9611 handeste"
You did not specify that the VPN was a single phone. The wording suggested that it MIGHT be an SCN across VPN (a common practice). Also, the 9611 is NOT the only VPN-capable phone. Any IP phone will work across a VPN using additional equipment (not an ideal practice, but I've seen people do it).
"2) Have they had any internet issues? No reported internet issues. If this was that simple, I wouldn't have come to the forum."
I asked this question not knowing which type of trunks you were dealing with. Had they been "analog" trunks provided by a cable TV company, and the trouble was only one direction, the culprit would likely be an infrastructure issue on the part of the provider, being VoIP. If this was the case, they would likely have intermittent internet issues as well.
"5) Is this a new install? If not, how long has he had the trouble? They are Release 9. So this has been installed for some time now."
Again, not a desirable situation, but sometimes people have installed a new system using an older software release in order to avoid upgrading an existing system with which it is going to be networked via SCN, or to use older phones that they may already have.
So, I did not ask these questions because I think you're stupid. I asked them, because the best method of troubleshooting begins with listening. And, sometimes, you have to ask questions in order to get the "customer", in our case YOU, to give all the information that is needed in order to find a potential cause.
I assume that you ask for help on this forum because you hope that someone knows something that you don't. I don't profess to be smarter than anyone. I'm just one beggar telling another beggar where I found some bread.
Thanks to technology, we can instantly communicate across the world, but it still doesn't help us know what to say.