Hmm....yes, the 4000 can have analog lines, either trunk or station. The 4000 is one of Siemen's largest and most complex, not to mention robust and cost effective in large installations, systems. I believe that the 4000 can have up to 6 MOH devices, and they can be set to play for different situations lines, or groups....
To be honest, if you, or the installation company putting this in, does not know these things about the 4000 then it might be best to either call Siemens, or get a company that is certified on the 4000. This is an increadibly complex system that does require training to administer and install, this is not a supply house key system. I do not mean to sound like I am putting you down, I am not, all I mean to do is let you know so that things go well for you!
Let me know if you have any more questions!
Steve
