Vxi EHS A2 Adapter #203930 for Avaya IP Phones: 1400,1608, 1616, 2400, 6400, 9608, 9611, 9620, 9620L, 9630, 9640, 9640G, 9641G, 9650, 9670, as well as for the 9500 series IP phones and 96x1 series desk phones.
Avaya Bluetooth Adapter For 9600 Series (700383789) – Atlas Phones
Avaya 9640 IP Telephone | 700383920 | £48.00
Avaya SPPOE-1A-IP Single Port PoE Injector | 700500725 | 52,36 €
Avaya 9608 with CS540 headset - How to install - YouTube
Avaya 9608G IP Gigabit Phone (700505424) at Macondo