Basic Call Features91You can enable or disable call waiting on the phone. If call waiting is enabled, you canreceive another call while there is already an active call on the phone. Otherwise,another incoming call is automatically rejected by the phone with a busy messagewhen there is an active call on the phone. You can also enable or disable the phone toplay a warning tone when receiving another call.To configure call waiting via phone user interface:1. Press Menu->Features->Call Waiting.2. Press or , or the Switch soft key to select Enabled from the Call Waitingfield.3. Press or , or the Switch soft key to select Enabled from the Play Tone field.4. (Optional.) Enter the call waiting on code or off code respectively in the On Codeor Off Code field.5. Press the Save soft key to accept the change or the Back soft key to cancel.Call waiting is configurable via web user interface at the path Features->GeneralInformation.You can create a conference with other two parties using the phone’s local conference.You can create a conference between an active call and a call on hold by pressing theConf soft key. The SIP-T23P/T23G IP phone also supports network conference.NoteThe SIP-T23P/T23G IP phone supports up to 3 parties (including yourself) in a conferencecall. This is the default method of conference called Local Conference.To set up a local conference call:Network conference is not available on all servers. For more information, contact yoursystem administrator.