Comdio CH201VA8 Corded Telephone Headset Headphones + Volume Mute Control for Nortel Meridian Norstar Avaya Aspire NEC Shoretel Altigen Safecom Siemens Rolm Plantronics T10 T20 IP Phones

Works for Phones:
Northern Telecom (Nortel Norstar Meridian IP Phones): 1120E IP 1140E IP 1150E IP i2002 (ip2002) i2004 (ip2004 (not compatible with i2400 phase II and i2004 POE phones) 12101220 1230 2465 2564 M2008 M2216 M2616 M3903 M3904 M3905 M7208 T7208 M7308 M7310 M7316 T7316 T7316E M7324 M7900 M8001 M8003 M9516 M9009 NT8B20 NT8B30 NT8B40 NT8B50 NTZK23AA AB: (M2216):ACDI Vista Powertouch 480 480e 480i Meridian Option M3110 3310 3820 BT Converse 220 225 300 320 325 420 425 1100 1200 1300 1400 Paragon 450
Polycom SoundPoint 300 301 335 430 450 500 (rev. E or later) 501 550 600 601 650 670 CX300 CX500 CX600 CX700 VVX300 VVX310 VVX400 VVX410 VVX500 VVX600 VVX1500 with a dedicated headset jack
ShoreTel Phone: IP100 IP212 IP212K IP230 IP265 IP530 IP560 IP560G IP565 IP565G IP655 420 480 480G 485
Mitel 5000 5010 5020 5040 5055 5140 5201 5205 5207 5210 5212 5215 5220 5224 5230 5235 5240 5250 5312 5324 5330 5340 5550 SuperSet 4015 4025 4125 4150 models
AltiGen 500 510 600 705 710720
TalkSwitch Phones: TS600
Safecom: SDSIP-500IP SIP Phones
Siemens/ROLM: Optiset E Series with CA or HA option modules Optiset E Advance Optiset Advance Plus+ Headset Adapter Comfort 300E+ Headset Adapter Comfort F300E Optipoint 410 Standard & Advance Optipoint 420 Standard & Advance Optipoint 500 Basic Standard Standard SL & Advance& office Optipoint 600 Optipoint 600 Office OpenStage 4040TDM 6060TDM 8080TDM Phones ROLM Phones with EHO option Module 612624
Plantronics: A100 S10 S11 S12 S50 T10 T20 T50 T100 T110 SP-02 SP-04 SP-05 A100 T50 T100 PLX-400 PLX-500