We have a 5610 VPN phone connecting to a Sonicwall TZ100. The phone connects to the VPN just fine and we can make calls fine but cannot hear the called party. Direct media path is unchecked for the extension. Is there anyone else who has had this working with a TZ100. We had this working with a netgear FVS338 but it proved unreliable so we went with the sonicwall to try to improve reliability but no luck yet.