Mitel IP Series, Models 5000 IP, 5010, 5020, 5020i, 5040i, 5050, 5055 IP, 5055 SIP, 5140, 5201, 5207 IP, 5210 IP, 5212, 5215, 5220, 5224, 5230, 5235, 5240, 5550 IP DKT-3001, DKT-3010S, DKT-3014SDL, DKT-3020S, DKT-3020SD (MUST HAVE TOSHIBA’BHEU ADAPTER for on hook answering, sold by Toshiba, not available from this seller) Plantronics P61N Polaris Supra headset is the most popular headset in the world, the Supra owes its popularity to the perfect balance between light weight, superior sound and outstanding comfort. The dual earpieces have a yoked double cable, which gives greater clarity by providing sound in both ears. The noise-canceling headset makes speech much clearer in noisy environments. If your phone does not have a headset jack and internal amplifier, then the Plantronics H-Serie.
