• Direct headset interface Compatible with the following Avaya Definity Models:
  7403D, 7405D, 7406D, 7410D, 7406, 8403, 8405, 8410D, 8411D, 8434, 8500 ISDN
• Includes a cord to connect into the adjunct port
• AC adapter for power included
• 10' coiled cord to quick disconnect-features
• Mute function
• Receive volume control
• Call Clarity TM technology for any Avaya Freedom of Choice headset

The 8400 Series One Touch Adapter (SOTA) connects into the adjunct port of the Avaya telephones enabling a simple one-touch answer feature for the headset. The adapter comes ready to use with a cord to connect into the adjunct port, an AC adapter for power and a 10' coiled cord to quick disconnect. The 8400 SOTA also features a mute function; receive volume control and Call Clarity TM technology for any Avaya Freedom of Choice headset. There is no longer the option to connect the plug prong adapter: the 8400 has audio circuitry built right in so the Avaya Freedom of Choice headset with the plug prong now connects directly. The 8400 SOTA provides the same audio level of performance as the plug prong adapter so the plug prong is no longer required.

(The Avaya 8400 Series One Touch Adapter is the
replacement for the Avaya 500AM / 500A )