To adjust the voice volume, press the Volume key up or down.

To activate the speakerphone feature, select Speaker.

In noisy environments, you may have difficulty hearing some calls while using the speakerphone feature. For better audio performance, use the normal phone mode.

To turn off the microphone so that the other party cannot hear you, select Mute.

To listen and talk to the other party via the Bluetooth headset, select Headset.

To place a call on hold, select Hold. To retrieve a held call, select Unhold.

To dial a second call, select Add call and then dial a new number.

To answer a second call, select Accept when a call waiting tone sounds. The device asks whether to end or hold the first call. You must subscribe to the call waiting service to use this feature.

To switch between the two calls, select Swap.

To end the call on hold, select Swap End call.

To make a multiparty call (conference call), make or answer a second call and select Merge when connected to the second party. Repeat to add more parties. You must subscribe to the multiparty call service to use this feature.

››View and dial missed calls

Your device will display calls you have missed on the display. To dial the number of a missed call, open the shortcut panel and select the missed call.

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Samsung GT-I5800 user manual ›› View and dial missed calls, To adjust the voice volume, press the Volume key up or down