Yealink SIP-T28P - Manual (Page 111)

Basic Call Features
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You can press or the Hold soft key to place the conference on hold. You can press
the Split soft key to split the conference call into two individual calls. To drop the
conference call, press the Cancel soft key.
You can use network conference on the SIP-T28P IP phone to conduct a conference with
multiple participants.
This feature allows you to perform the following:

Join two calls together into a conference call.

Invite another party into an active conference call.
To use this feature, contact your system administrator for the network conference URI in
advance.
To configure network conference via web user interface:
1. Click on Account.
2. Select the desired account from the pull-down list of Account.
3. Click on Advanced.
4. Select Network Conference from the pull-down list of Conference Type.
5. Enter the conference URI (e.g., [email protected]) in the Conference URI
field.