Review on Plantronics Polaris Headset Disconnect 2719001 by Leroy Wolfe

This quick deactivation works with my Polycom 335 and IP550. It looks like it might be a bit difficult to get precise. but it connects my HN301 and Polycom phones perfectly. I tried cheaper options but they didn't work for the two pieces of phone system I have and I had to return them. If you are browsing these quick connect connectors while trying to buy a lot in bulk, make sure you select the ones that are made specifically for your phones. There are some wrong ones (and I want to save you from my mistake). Much luck!