This headset has a 2.5 mm jack.
This headset has a standard 3.5mm audio jack connection.
The LOG981000574 - USB H570e Over-the-Head Wired Headset is not for phone use and will not work with a Cisco (or any other) phone. It is designed to connect to a computer and works with USB connectivity. If you are able to provide your phone model, we can narrow our search for you and find you a headset especially designed for and fitted to your phone.
The Spracht HS-2012 ZUM DECT 6.0 Wireless Headset will work with any office phone with an RJ-11 phone cord.
Telephone headsets work great for any office--they improve the sound quality on both sides of the call, free your hands, and are more comfortable to use than hand-held phones. On Time Supplies offers headsets in a range of styles and capabilities. Thanks to fast shipping from On Time Supplies, you get your telephone headsets in as little as a day. If you need more information on the supplies featured at On Time Supplies, or on GSA pricing, call us toll free at 1-866-501-6055. We're happy to answer any supply questions.