Voice Systems and Accessories - Small Business

Upgrade your communication system with our Voice Systems and Accessories, perfect for small businesses.
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All,We've used overlay in the past, but does overlay of a single extension have a liiotation?  i.e. you can only get one overlay per extension?We had a 7921 that was overlayed with X 201, the 7921 was physically removed from the UC, not logically or ...

I recently purchased a PoE switch to replace an older non-managed switch and am having some very strange occurrences when I connect my ATA-186 devices to it.  Basically, what is happening is if I connect the ATA and a PC to a switch other than my ESW...