6.2 How to Use the Headset and Headset Adapter
Insert the Headset Adapter into the SPK and MIC holes on the left side of the phone
Insert the
Speaker
MIC
Note: You can use any standard headset since UIP312’s headset pin map conforms to the standard.
When using
For maximum voice quality when using the headset, the following headsets are recommended.
Plantronics TriStar H81, GN Netcom Headset
Page 8