User Guide

Basic Call Features
117
Call Waiting
You can enable or disable call waiting on the phone. If call waiting is enabled, you can receive
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 message when there is an active call on the
phone. You can also enable or disable the phone to play 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 Waiting field.
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 Code or Off
Code field.
If on code or off code is configured, the IP phone will send the corresponding code to
activate or deactivate call waiting on the server. It is not available on all servers.
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->General Information.
Note
Conference
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 the Conf soft key. The
SIP-T23P/G IP phone also supports network conference.
Note
Local Conference
The SIP-T23P/G IP phone supports up to 3 parties (including yourself) in a conference call. This
Network conference is not available on all servers. For more information, contact your system
administrator.
If on code or off code is not configured, the call waiting may not take effect. It depends on your
server. Contact your server administrator for more information.