Aastra Telecom 41-001286-00 Manuel D’Utilisation

Aastra MBU 400 User Guide

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When the active call has disconnected or you have ended the call pressing the red 

key 

, you are left with a call on hold.

4.  Press the red key to return to the call on hold.

While on an active call with a call on hold you can swap calls, switching which call is 
on hold.

To make the call on hold active and leave the active call on hold do the following.

1.  Press the 

Options

 softkey.

2.  Select 

Swap calls

 and press OK z.

While on an active call with a second call on hold, you can connect to both calls at 
once by conferencing the three calls together.

To connect to both calls do the following.

1.  Press the 

Options

 softkey.

2.  Select 

Conference

 and press OK z.

While on an active call with another call on hold, you can transfer the active call to a 
number you enter or select from the Contacts list. See 

 

for details.

While on an active call with another call on hold, you can transfer one call to the 
other.

To transfer an active call to a call on hold do the following.

1.  Press the 

Options

 softkey.

2.  Select 

Transfer to 

and press OK z.

The active call and call on hold connect, and your phone disconnects.

You can mute/unmute active calls if required. When a call is muted the bottom left 
softkey label reads 

Mute off

, and although you can still hear the call, no one else 

connected to the call can hear you.

To mute or unmute a call do the following.

1.  During an active call, press the 

Mute

 softkey.

2.  Press the 

Mute off

 softkey to unmute the call.

CLR

CLR