Unfortunately there is no direct communication between Eyezon's servers and the Central Monitoring Stations we use across North America. Your Envisalink communicates directly with the station and does not rely on Eyezon's servers to relay your alarm signals. This makes it much more reliable than any other IP-based monitoring system. But the fact we don't store-and-forward your alarms signals also means we can't do what you are suggesting. Sorry.
Your explanation makes sense and i understand it. This architecture does make it more complicated, but I believe this feature could still be done. Your website is able to communicate with the EVL boards to arm remotely from the website. For this feature, the website sends a new messages to the EVL saying "enter test mode for x minutes." The website also allows a new "exit test mode" command to be entered and sent to the EVL. Maybe no SMS messages are sent during test mode. That would be fine. The alarm messages are blocked at the source rather than at the central station or at your webserver.