Avaya / Nortel
Compatibility
Avaya 1609 / 1616 / 9620 / 9630 / 9640 / 9650 / 9670 Series or IP desk phone models 9608, 9611, 9621G, 9630G, 9641G: Use 14201-35
Avaya 2420 / 4600 / 5600 Series: Use 14201-19
Avaya/Nortel 1100 Series IP Phones with a USB headset port: Use 14201-32
All other Avaya phones: Use 14201-20