This is the Clarity Walker (now Forester Solutions) WS-2835 is a PTT handset custom build as a direct replacement for use with Cisco 7800, 8800 and DX600 series Cisco IP phones. Clarity Walker WS-2835 handset uses the Push-to-Talk feature to address the need for a secure conversation where background conversations must not be heard.

Compatible with Cisco 7821, 7841, 7861, 8811, 8841, 8845, 8851, 8861, 8865 and DX660 series phones.

Key Features:

• Clear static-free reception
• Electret transmitter provides extra-clear voice
• Hearing aid compatible
• Charcoal color
• Works with all Cisco 78xx, 88xx and DX600 series phones
• Not compatible with Cisco 79xx models.  See Clarity WS-2620-24 Cisco Phone 7900 Push-To-Talk Handset instead
• Not compatible with Cisco 6900, 8900, 9900, Use  Clarity Walker WS-2800 Cisco Phone 6900 8900 9900 PTT Handset  instead

See  Clarity Walker WS-2835 datasheet for more information