For those of you with both, can you answer a few quick questions?
First, where did you get this optional "link cable" that goes between the ZR3 and X50? Is it a regular phone cord?

Second, does the link power the X50 or do I have to wire power to the X50 as well as to the ZR3?

Finally, does the mute button that comes with the ZR3 also mute the x50 at the same time?

Thanks