Comdio CH203VA2 Corded Call Center Phone Headset Volume Mute Contol for AASTRA Allworx Altigen Avaya NEC Nort

Works for Phones:
Aastra 2465 2564 480 480e 480i 51i 53i 55i 57i 57iCT 554 564 565 i733 1120e 1140e 1150e 1210 1220 1230 i2002 i2004 i2004 IP i2004 Phase II i2052 7406 8540 9617 6730i 6731i 6739i 6751i 6753i 6755i 6757i 6757i CT 7446i 9112i 9133i 9116 9143i 9480i M2216 (ACD I or ACD II) M3905 M4000 M4020 M7208 M7308 M7310 M7316 M7324 M4000 M4020 M5208 M5209 M5216 M5317 M7900 M8001 M8003 M9009 M9516 Powertouch 480 480e 480i Telephones i2002 i2004 i2004 IP (not compatible with i2400 phase II and i2004 POE phones) Dialog 4222 4223 4224 4225
AltiGen 500 510 600 705 710720
Adtran IP Phone: IP321 331 430 650 670
AVAYA / Lucent: 6402D 6408D+ 6416D+M 6424D+M 8403 8410D 8434DX 4406D+ 4412D+ 4424D+ 4424LD+ 1408 1416 2410 2420 4610 4610SW 4612 4620 4620SW 4621 4621SW 4622 4622SW 4625 4625W 4630 4630SW 5410 5420 5610 562056215625 9404 9406 9408 9504 9508 DT1 DT3 DT5 QE4610
NEC: Electra Elite IPK Dterm Series E models DTU-8 DTU-8D DTU-16 DTU-16D DTU-32 DTU-32D DTP-8 DTP-8D DTP-16 DTP-16D DTP-32 DTP-32D DTH-8 DTH-8D DTH-16 DTH-16D DTH-32 DTH-32D DT300 DT310 DT330 DT700 DT730 DT750 Dterm Series i DSX DTL DTP DTR DTU SERIES PHONES Aspire
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