| Plantronics A20 Accessory Deck Adapter/Amplifier The Plantronics A20 Accessory Deck Adapter/Amplifier has been discontinued.Plantronics has discontinued this model, and replaced it with the M12. Please call 800-641-6416 with questions about alternatives to the A20 Accessory Deck Adapter/Amplifier.  - Adjustable accessory deck
- Audible and visual cues for easy adjustment
- Auto configuration
- Connects to most single or multi-line phones
- Cord management
- Mute
- Quick disconnect headset cord allows you to walk away from the phone without removing the headset
- Receive and transmit volume control
- Six foot corded on-line indicator
- Tone control
- Variable placement headset stand
Documents and DownloadsA20: Plantronics under the telephone Modular Adapter/Amplifier and accessory stand. Parts and Accessories 45669-02 220V Euro Power Supply CA10 CS10 A20
More Info  | 9.95 | Add to cart
 45669-01 AC Adapter for CA10 CS10
More Info | 9.95 | Add to cart
40710-01 Base Training Station w/AC Adapter
More Info | 119.96 | Add to cart 40976-01 Coil Cable QD to Modular with QD Locks for M22, M12
More Info | 14.95 | Add to cart  61866-01 Cable 2.5mm to Quick Disconnect
More Info | 9.95 | Add to cart
65218-01 CORD, PHONE TO AMP CA10 CS10 A20 S20 S12
More Info | 3.95 | Add to cart  43299-01 Cushion Ring Set for Duoset
More Info | 2.99 | Add to cart
 45651-01 Earloop for Convertible Headsets Duoset CT12 LKA10
More Info | 9.95 | Add to cart
 43298-01 Adjustable Headband for Supra
More Info | 13.3 | Add to cart
 42157-01 Neck Strap for CA10 CS10 Remote Unit
More Info | 9.99 | Add to cart
46657-01 ON-LINE-INDICATOR (180 degree plug), A20, S20
More Info | 24.95 | Add to cart  65116-01 On Line Indicator OLI for Wireless Headsets
More Info | 24.95 | Add to cart
 45650-01 Pivot Ball and Ring for Duoset CT12
More Info | .99 | Add to cart
 46924-01 AC Adapter for CT10
More Info | 9.95 | Add to cart
47249-02 AC Adapter A20
More Info | 9.95 | Add to cart  40702-01 Lightweight QD to Modular Cable for M22, M12 A20
More Info | 14.95 | Add to cart
 40974-01 Telephone Connection Cable for M22, M12
More Info | 3.95 | Add to cart
44877-02 MX10 Audio Device Cable
More Info | 10.99 | Add to cart  40711-01 Lightweight QD to QD Coil Cable for M22, M12 A20
More Info | 18.95 | Add to cart
 45588-01 Modular Lock (Package of 25) for M22, M12
More Info | 39.99 | Add to cart
 26716-01 M22, M12 Amplifier Cable / Cisco IP Phone Cable
More Info | 12.95 | Add to cart
 26718-01 Stub Cable, Telephone To Adapter
More Info | 3.95 | Add to cart
 HL2 Handset Lifter for A20/S20 Base
More Info | 79.95 | Add to cart
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