This is a beginners question but I have to ask it. I must add a new type 500 line to our system. I went to the TN block and found what I think is an open slot. I ran my crossover wires to the DN block and then ran my wires to the phone. I then went into LD 10 and copied an existing analog port. Everything went smoothly but the line seems to be dead. Did I do things correctly? Any ideas? I am working with Meridian 1 Option 21 Release 17.76.