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Using the phone 15
Transfer an external call to another handset During a call:
1.Follow steps 1 to 3 in section “Intercom another handset”.
2.The external call is put on hold automatically and the called handset rings.
3.Press <TALK ON> / <SPEAKERPHONE> / <Accept> on the called handset to establish an internal call.
4.Press <TALK OFF> on the calling handset to end the current call with the external party.
5.The external call is transferred to the called handset.
Switch calls between an external call and an internal call
During a call:
1.Follow steps 1 to 3 in section “Intercom another handset”.
2.The external call is put on hold automatically and the called handset rings.
3.Press <TALK ON> / <SPEAKERPHONE> / <Accept> on the called handset to establish an internal call.
4.Press <INT> on the calling handset to switch between the external call and the intercom call, while keeping the other on hold.
5.Press <INT> on the calling handset to switch the call connection with the internal party while putting the external call on hold.
Make a 3-way conference call
The conference call feature allows one external call and two handsets to share a conversation and no network subscription is required.
During an external call:
1.Follow Steps 1 to 3 in section “Transfer an external call to another handset”.
2.Press and hold <INT> to establish the