Plantronics P-Series Headsets
Compatible with these Polaris headsets:
Nortel: Meridian SL1 models M3903, M3904, M3905; Meridian Norstar models M7310, M7208, M7308, M7316, T7316, M7324, M7900, NT8B20, NT8B30, NT8B40, NT8B50; SL100 model NTZK23AA, AB: (M2216):ACDI
Mitel: SuperSet 4000 Series models 4015, 4025, 4125, 4150; IP Phone: models 5020, 5020i, 5140, 5220
Toshiaba: DKT 3001, 3010S, 3020S, 3020SD, 3014SDL