A:Answer Hi tedzep21,
The NR1711 has a healthy set of inputs and outputs for a modern compact surround sound receiver. As with the vast majority (if not all) of home audio equipment, the NR1711 is not designed to connect to an intercom system for music playback specifically. If you speak with your intercom installer/manufacturer, they can tell whether or not their system is designed to work with home audio for music playback.
It is worth considering that intercom speakers are designed to reveal a very lo-fi output of voices speaking into their systems. High and low frequencies are not well represented by typical intercom systems, which results in a level of sound quality which isn't likely to compliment music playback.