I am a data guy and have never even touched any type of phone system before. I am currently setting up the network for one of my customers and he aquired a NEC DX7NA-48 Key System that he would like to use in his office. He has ordered 3 voice lines from SBC and 2 dedicated fax lines.

First question: Is this something I should leave to experienced installers only, or would this setup be fairly straight forward?

Second question: How can I aquire an installation manual for this system? I guess the person he got the NEC from "lost" the manual somewhere down the line.

Any help on this would be greatly appreciated. Remember, I am/have been strictly a data communications tech and NOT a voice communications tech, but I do learn very quickly.