I have 5 trunks. On an incoming call situation I would like to know what trunk is the call coming from or what number was dialed prior to answering external calls. Currently all incoming calls are routed to ring groups, then all of the extensions ring simultaneity. It would be ideal to be able to get a recorded message to play before we answer the phone so that we are aware of what number was dialed. Is there a way to make this work?