JPL Electronic Hookswitch Control for Wireless Headset (EHS-Cables) – Global Communication
Jabra Link 14201-32 EHS Cable Adapter - Avaya/Nortel
Yealink IP Phone SIP-T42S 6-UNITS Dual-port Gigabit Ethernet PoE support
Sennheiser - Headphones & Headsets - Microphones - Business Communications
Fanvil EHS headset adapter for JABRA (Jabra PRO 920, PRO 9450, PRO 94
Sennheiser - Headphones & Headsets - Microphones - Business Communications
GRANDSTREAM GXP2140 Enterprise HD Voice IP Telephone, color high reso
Confluence Mobile - Documentation
Amazon.com: Plantronics - Electronic Hook Switch Cable APP-51 (Poly) - Remote Desk Phone Call Control - Works with Poly Desk Phones : Electronics
GXP1760W EHS port - GXP17xx Series mid-range IP phones -
Amazon.com : Axtel AX-400G IP Phone - 8 SIP Accounts, 5-Way Audio Conference Bridge, Dual-Port PoE Gigabit Ethernet, Illuminated 2.8" 320×240 Pixel Color Display, Crystal Clear HD Sound, EHS Capable - Black :
Poly APN-91 EHS Cable - Headsets Direct
Converter Adapter | Converts RJ-9 to 2.5mm for phones that have a 2.5mm jack., (2200-11095-002) | Use with APP-50, APP-51 EHS for Polycom, Connecting telephone devices to 2.5mm headset mini jack
EHS Contact Center Cables/Lifters - Headsets Direct