These headsets fit 99% of office phones with a 2.5mm pin jack headset port including Cisco SPA models.
Compatible with Cisco Models:
Compatible with 3.5mm equipped telephones such as:
Easy to use website, and very fast shipping. Add the unbeatable prices and you get an online store who knows how to get customers to return. I look forward to my next purchase. Thanks."
Reviewer: Kenneth from Springfield, MO