A colleague addresses you directly over the speaker with a speaker call. You hear a tone before the announcement. The other party's name or station number appears on the screen. 

You can conduct the call with the handset or in speakerphone mode. 

Speakerphone mode is not available with optiPoint 400 economy.

Lift the handset and answer the call. 

Press the "OK" key to confirm your selection and answer the call. 

Press the key and answer the call. 

If handsfree answerback is enabled (see below), you do not need to switch on the microphone - you can answer directly. You can answer immediately in speakerphone mode. If handsfree answerback is disabled (default setting), follow the procedure described above.  Placing a speaker call to a colleague .

Enabling and Disabling Handsfree Answerback

Select and confirm. 

Enter the code for "on" or "off".