Basic Functions
Handset / Handsfree / Headset
The snom220 supports calls being made while using the handset or the handsfree capability. During a call it is possible to switch between both
modes by pressing the function keys 
/
or the Speaker key 
on the right side beside the display.
If a headset is connected and the audio output is set to headset (“RJ Conn” or “Chinch”), the snom220 will treat the headset as the output device for calls. When the snom 220 is used in a call center environment, the connected headset will be the default setting for
speaking on the phone. The ENTER key 
is therefore used to accept incoming calls.
Key mapping:
/
Switch to handsfree mode and back.
Accept incoming calls in headset mode.
ENTER
Returns the phone to the idle state.
CANCEL
Programmable Keys
The five keys to the right of the numbers block are the programmable function keys that have the following options:
Line
Destination
Intercom
Park Orbit
Voice Recorder
DTMF (H.323 only)
Each of these buttons has an LED indicating the status of the respective programmable key at any given time.
Some features are common to all keys:
Pressing a key when its LED is blinking and the phone is ringing will receive the call.
Pressing the key when a call is in progress at that key, as indicated by the constantly lighted LED, will put the call on hold.
Pressing the key twice while editing a number for dialing at that key, with the receiver in the cradle, will return the phone will go to idle state.
Pressing the key twice while editing a number for dialing at that key, with the receiver off the hook, will erase the number.
Each of these different options will now be explained in detail.
Line
'Line' can be used in one of the following ways:
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