I have a client that has a paging system through an Algo device. The Algo is registered as an extension. I need any extension to be able t call the paging system, but i would like to block external calls from coming in.
The inbound route goes to an IVR that has direct dial enabled. So anyone who knows the paging extension could call from an outside line and start blasting the paging system.
Either add IVR Entry (option) to your IVR that matches the Algo extension and routes to Terminate Call, or set Enable Direct Dial to use a Directory that does not include the Algo.