Can the new AP541Ns be used to expand the wireless coverage area for a small business using UC540 with integrated wifi? There seems to be some confusion about what is possible and supported. This would be for voice over wireless use.
The AP541 is specifically designed with the UC5xx platform in mind. It has been carefully molded to fit with a variety of Small Business Pro devices such as the ESW switches, SA5xx firewalls, SR5xx routers, and of course the UC5xx platform.
Here is a great link to what you inquiring about :
In it, the question you asked is specifically addressed. You can also take a gander at the Admin guide here:
It goes into greater detail about how to set up all of the features of the AP541.
So then if Im reading the guide correctly it appears to be one or the other, meaning you either deploy a wireless network only with the integrated UC540 AP or you use the AP541s if the UC540 range is not sufficient, but not both at the same time for range expansion. That seems like a big set back of the solution design since often a customer may want to leverage the UC540 integrated wireless but expand coverage to adequately cover an entire office.