Hey Guys can anybody teach me how to count the total number of trunklines in our existing EPABX MD110 BC 9.0? Our Tel. Exchange administrator who installed our system died of cancer and he didn't left any documentation. We are about to begin a feasibility study for expansion and I can not determine the total number of trunklines. I can see we have these TLU44 and TLU23 cards does this mean anything to you? Is there anyway we can determine which trunklines are currently being used? Sorry about these absurd questions but I am new to this PABX system and worst of all I am tasked to continue the improvements and maintenance of this telephone system. Any suggestions, manuals or procedures that maybe sent to me will be of very much help and will be greatly appreciated. Thanks in advance. and More Power to All of you GUYS!!!