ALE M3-M5-M7-M8 DeskPhones Administrator Guide
10.18 Call Mute
You can mute the microphone of the active audio device (handset, headset or speakerphone) on ALE
phones during an active call or when the phone is on the calling/ringing screen. The call is automatically
muted when setting up successfully. Muting before a call is answered prevents the other party from hearing
local discussion. You can activate the mute feature by pressing the MUTE key.
Normally, the mute feature is automatically deactivated when the active call ends. You can use keep mute
feature to keep the mute state persisting across the calls. In a call center or meet room, if incoming calls are
answered automatically, the callers may hear the local discussion. Therefore, you can mute the phone in an
idle state to prevent the unintended situation. The mute state persists across calls until you unmute the
microphone manually or until the phone restarts. You can activate the mute feature by pressing the MUTE
key in idle/ dial/ringing/calling/talking state.
The following table lists the parameter you can use to enable or disable keep mute.
It configures the keep mute feature for the IP phone.
false - disable
true - enable
10.19 Call Transfer
Call transfer enables the IP phones to transfer an existing call to a third party. For example, if party A is in an
active call with party B, party A can transfer this call to party C (the third party). Then, party B will begin a
new call with party C, and party A will disconnect.
The ALE Myriad Series phones support call transfer using the REFER method specified in RFC 3515 and
offer two types of transfer:
• Blind Transfer - Transfer a call directly to another party without consulting. Blind transfer is
implemented by a simple REFER method without Replaces in the Refer-To header.
• Attended Transfer (Consultative Transfer) - Transfer a call with prior consulting. Attended transfer
is implemented by a REFER method with Replaces in the Refer-To header.
10.19.1 Call Transfer Configuration
The following table lists the parameters you can use to configure call transfer.
It enables or disables the transfer feature of the IP phone.
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