I agree this concern is serious. I was forced to switch to 2 stage dialling because of this issue.2 stage dialling works great but has issues in receiving calls. A caller from a PSTN network would never know that the gateway is configured in 2stage mode and will never be able to reach the DR or IVR and one cannot recieve inbound calls on a 2 stage dialling method. I wish to revert back to 1 stage dialling if this delay issue is resolved. Atleast there should be a call progress indicator or dial tome.