Voice starts the message before the contact answers and the message is missed if it isn’t answered right away. Win911 V7 used to wait for a response upon the being answered to start the message. The operators greatly would like this feature to be added back in your current product.
Hi There, we have the same problem. We are testing the call-out system with one grandstream connected to the server with the WIN911 and another voip to face a phone line, but we don't think what makes the delay. What is your setup? Did you solve the problem?
On our Win911 implementation we experience an 11 second delay from pick-up to the start of the voice message. It would be very helpful to reduce/remove this.