I just installed a new Norstar MICS 6.1, with 25 stations. It was a new install, with all the ports set at default- p101=DN 221, p102=DN 222,...etc. I created the voicemail boxes (CP150) to be the same number as the DN. Just after the install, another tech changed several ports to different DNs, to avoid any x-connect work,. Now there is p126 to DN 240, p128 to DN 237, and several others.I have had to correct a voicemail issue already, and I am wondering if there are any other possible problems or confusion this might cause in the future.