Quick Disconnect RJ9 Headset for Compatible Phones Works with Polycom Nortel and More Phones Refer to the description below, compatible phone listsFor other phone models, see Smart cord headsets in the chart below for any Desk Phone's RJ9 jack Bundle Package Package includes A Headset, built Quick Disconnect A Quick Disconnet Phone Adapter to RJ9 Headset Jack of compatible Avaya Phones Quick Disconnet Cord Benefit The QD connection, essential connector for professional headsets, also enables you to place a call on hold by simply disconnecting the headset at the QD during a call. It enables you to walk away from the telephone without having to remove the headset Compatible Phone Lists (but not limited) Aastra: 6731i 6735i 6737i 6739i 6753i 6755i 6757i 9112i 9133i 9143i 9480i 53i 55i 57i 480 480i 480e M6320 M5317 M5316 M5216 9417 9417CW 9516 9516CW 1120e, 1140e, 1150e, 1165e, T7208 T7316 T7316e T7324 M7208 M7308 M7310 M7316 M7324 M6320 M3903 M3904 M3905 M2216 M2312 M7900 M9417 M9417CW M9516 M9516CW Polycom : VVX50 VVX101 VVX150 VVX201 VVX250 VVX300 VVX350 VVX301 VVX310 VVX311 VVX400 VVX401 VVX410 VVX411 VVX450 VVX500 VVX501 VVX600 & VVX601, Soundpoint Models IP301 IP331 IP335 IP550 IP560 CX300 CX500 CX600 CX700 Mitel : 5212 5215 5220 5224 5230 5235 5240 5250 4422 4425 5312 5320 5320e 5330 5330e 5340 5340e 5410 5420 550 5540 8528 8568 IP420 IP420G IP480 IP485G Shoretel : 212 212K IP230 230 265 530 560 560G 565 565G 655 420 480 480G 485 NEC SL1100 DT300 DT400 DT700 series, DSX 22B & 34B, DSX Series, DTU-8D-1A, DTerm 2DT-1P, 8D-1P, 16D-1P, 32D-1P, DTerm IP 8D-2P 16D-2P; DTerm Series E DTL series; DTP-16D, DTP-32D, DTP-8, DTP-8D,DTU-16-1, DTU-16D-1, DTU-16D-2, DTU-32-1, DTU-32D-1, DTU-32D-2, DTU-8-1, DTU-8-2, NEC Aspire Adtran : IP321 331 430 650 670 Alcatel-Lucent: 4004 4020 4022 4035 4037 Digium: D40 D45 D50 D65 D70 Plantronics: A100 S10 S11 S12 S50 T10 T20 T50 T100 T110 SP-02 SP-04 SP-05 A100 T50 T100 PLX-400 PLX-500 Professional Headset Features The majority of call centres get superior performance from VT(Voice Tube Mic), which is more forgiving of positioning and lighter for a more stable fit.The VT, replaceable, also provides better hygiene and, by using different colors at different testing stages, provides indication of age and condition.INNOTALK Challenge Pro-V headset adopts an adjustable Voice Tube Mic attached on a stainless steel sonic pipe, which is extendable, positioning best distance from your mouth for the perfect audio condition.The Voice Tube Mic delivers a more crispy and real voice than other models having Noise Cancelling Mic, customers feel the best friendly customer support if you are in a quiet environment.Superior durable headset is focusing on Telemarketing service.Easily stay-put click-stop headband and soft Rubber T-bar supports all-day long comfortable wearing.The wideband frequency response receiver specially for IP telephony.Omni-directional Mic with Static shock protection protects customers from noise spikes For All Other Desk Phone Models with RJ9 headset port, the below SmartCord (Selective Compatibility Cord) Headsets are Recommended. Classic Monaural Headset Classic Binaural Headset RJ9 Innotalk Supersonic Headset RJ9Innotalk ChangeProV Headset Innotalk ChangePro RJ9 Headset Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Customer Reviews 3.1 out of 5 stars 6 4.5 out of 5 stars 5 3.1 out of 5 stars 6 3.1 out of 5 stars 6 — Price $49.00$49.00 $52.00$52.00 $59.00$59.00 $65.00$65.00 $65.00$65.00 Adapter Cord Smart cord Smart cord Smart cord Smart cord Smart cord Jack RJ9 RJ9 RJ9 RJ9 RJ9 Speaker Single Double Single Single Single Noise Cancel Mic ✓ ✓ ✓ Clear Voice ✓