Yealink SIP-T48G - Manual (Page 123)

Basic Call Features
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You can enable or disable call waiting on the phone. If call waiting is enabled, you can
receive another call when there is 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. Tap ->Call Features->Call Waiting.
2. Tap the On radio box of the Call Waiting field.
3. Tap the On radio box of the Play Tone field.
4. (Optional.) Enter the call waiting on code or off code respectively in the On Code or
Off Code field.
5. Tap the Save soft key to accept the change or to cancel.
Call waiting is configurable via web user interface at the path Features->General
Information.
You can use SIP-T48G IP phone to create a conference with two parties using the phone’s
local conference or create a conference with multiple participants called network
conference.
Note Network conference is not available on all servers. For more information, contact your
system administrator.