Yealink SIP VP-T49G User Manual page 213

Tap the Hold call to join the calls in the conference.
4.
Repeat steps 3, 4 to join more calls in the conference.
5.
During the conference call, you can do the following:
Press or tap the Hold soft key to place the conference call on hold.
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Tap the Conference soft key to place a new call.
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Tap the Split soft key to split the conference call into individual calls on hold.
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Press to mute the conference call, all other participants can hear each other, but they
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cannot hear you.
Tap the EndCall soft key to drop the conference call.
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Long tap the desired party (if the far site only supports audio-only call, you can just tap it),
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the phone will prompt a dialog box as the following picture shows:
You can do the following:
Tap Far Mute to mute the party. The muted party can hear everyone, but no one can
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Basic Phone Features
213