Plantronics APV-63 Electronic Hook Switch 

• For use with AVAYA IP telephones operating either the Plantronics Savi W700 or the CS500 product series

• Enables remote Call Answer / Call End without the need for an HL10 lifter

• Includes Online Indicator Port

• Provides Remote Ring Detection (beeping in ear)

Compatible Avaya telephones include:

• 1408
• 1416
• 1608
• 1616
• 2410
• 4630
• 5410
• 9404
• 9406
• 9504
• 9508
• 9608
• 9620
• 9620L
• 9621
• 9630
• 9640
• 9641G
• 9650
• 9670
• 6416D+M
• 6424D+M