16 headsets work with the Cisco Unified 521G: 8 wireless DECT and 8 corded headsets. The list comes from the EPOS compatibility guide and our recommended headsets.
Quick facts
Compatible headsets
16 (8 wireless DECT and 8 corded headsets)
Built-in Bluetooth
Not listed by the makers
Also known as
Cisco Unified521G
Listed by
EPOS (15)
Updated
25 Jun 2026
Our picks for the Cisco Unified 521G
One for each kind of headset the makers list for this phone, from the headsets we sell. Our recommended headsets come first where they are listed.
Can I use a USB headset with the Cisco Unified 521G?
The makers' guides don't list a USB headset connection for the Cisco Unified 521G, and this guide shows only what they list. The headsets listed connect through the routes shown in each row. If you need a USB headset, ask an advisor.
Does the Cisco Unified 521G work with Bluetooth headsets?
The makers' guides don't list pairing a headset with the Cisco Unified 521G's own Bluetooth, and this guide shows only what they list. If you need that, ask an advisor.
All 16 compatible headsets, by kind. Recommended first, then the ones we stock.
16 compatible
Wireless DECT headsets 8
Remote call control Remote call control means you can answer and end calls with the button on your headset. "Not stated" means the headset works with this phone, but remote call control has not been verified.
Headset
Compatible
Connects via
Accessory needed
Remote call controlRemote call control means you can answer and end calls with the button on your headset. "Not stated" means the headset works with this phone, but remote call control has not been verified.
IMPACT 5000 · Double-Sided DECT Headset · connects to SmartPhone/DeskPhone/SoftPhoneSource: EPOS list · Jun 2026
Corded headsets (headset port) 8
Remote call control Remote call control means you can answer and end calls with the button on your headset. "Not stated" means the headset works with this phone, but remote call control has not been verified.
Headset
Compatible
Connects via
Accessory needed
Remote call controlRemote call control means you can answer and end calls with the button on your headset. "Not stated" means the headset works with this phone, but remote call control has not been verified.
