- APV-63 electronic hook switch cable for remote desk phone call control (answer/end)- Eliminates the need for a HL10 Handset Lifter- Works with Avaya desk phones- Replaces the APV-52 cable and features compatibility with the Plantronics on-line indicator accessory - Compatible Plantronics headsets include Savi 700 series, CS500 series, and Voyager Legend CS - Plantronics Part: 38734-11