I have a Pub/SUb in one location and IP phones in a separate location. The IPPhones experience 1-2 second delay when going off hook to get dial tone. this happens about every 5 times they go off hook. They are connected over a 5MB Lan to LAN VPN and there are no ACLs applied. The phones show at most, a value of 4 for jitter while going off hook. "Auto Qos voip trust" is applied to all trunk/CCM ports on switches and "voip cisco-phone" is applied to the ipphone ports. I know VPN has no guarantees of Quality of service, but we are getting around 40ms average round trip times and no packet loss. Any ideas on any other configurations to verify?