POLY APN-91 - Electronic hook switch adapter - for CS 510, 520, 530, 540; Savi W710, W720, W730, W740; Voyager Legend CS 85Q59AA

Electronic Hook Switch Cable for remote desk phone call control (answer/end). This cable eliminates the need for a HL10 Handset Lifter.\nThis cable works with NEC desk phones, check with our Product Configurator for more information.

• Designed For: CS 510, 510 Spare Headset, 520, 520 Spare Headset, 520A, 530, 530A, 540, 540 Spare Headset, 540 Spare Headset C540A, 540A, 540-XD
• Savi W710, W710/A, W710-M, W720, W720/A, W720-M, W730, W730/A, W730-M, W740, W740/A, W740/A-M, W740-M
• Voyager Legend CS