I can't ping anything in the voice vlan from the CUCM except the router. I can also ping devices in other VLANs from the CUCM, it's only in the VLAN the CUCM's ip address is on that I see this problem. If I create a new VLAN for the phones so they are not on the same VLAN as the CUCM then they can talk to the CUCM. If I plug a PC into the voice vlan I can ping the phones and router but not the CUCM. But from the router I can ping everything.
Everything I'm testing with connects to a switch module in the 4351.