Allows you to connect a modular headset to certain Polycom phones
2.5mm to RJ9 adapter
The Polycom SoundPoint IP 320, 321, 330, and 331 phones have a 2.5mm headset port located on the right side of the phone
This headset jack adapter (P/N 2457-110-95-002) allows headsets terminated in RJ9 modular jacks to be used with SoundPoint IP 320, 321, 330, and 331 phones
Plug the headset RJ9 jack into the adapter, then plug the adapter into the 2.5mm port on the right side of the Polycom phone as shown in the picture above and under "Datasheet" tab
You may plug in a corded headset or a wireless headset base, as long as the connection is 4-pin modular
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