Does anyone know how can I reduce the timing for a call to be route via PSTN with VNS feature turned on? I monitor the delay was due to the DCH message for VNS only response 8-10secs after it recieved the call. Means from Site A to Site B, when make a call via VNS, I get a 10secs delay. If I go via the PSTN without VNS, the delay was only 5 secs.