FAQ Desktop - call_waiting

Description

Call Waiting Indication combines two functions:

"Call Waiting (CW)" can be enabled ("on", "visual only", "ringer") or disabled ("off"). This function allows the phone to receive more than one call at one time.
"Call Waiting Indication (CWI)" If Call Waiting is enabled ("on", "visual only", "ringer") the incoming caller extension is displayed in the lower left corner of the display. A short knocking signal can be heard simultaneously in the background of your current active call indicating another incoming call.

By disabling ("off") Call Waiting the phone will send 486 "Busy Here" also for Dial screen is active (user lifted the handset or started Dialing from Idle) and the call attempt is started (Invite send, Ringback received etc.) In older versions, CW "off" was only covering established calls.

Web User Interface

Web Interface/V8/Identities#SIP - SIP (Tab)__Call Waiting Indication

Phone User Interface

press "Menu" - Call Features/Incoming Calls

Auto-provisioning

Parameter	Valid value
<call_waiting perm="PERMISSIONFLAGS">VALIDVALUE</call_waiting>	on -> Visual and audio indication of incoming calls that are waiting visual -> Visual indication but NO audio indication ringer -> Audio indication but NO visual indication off -> Disabled and only ONE call can be received and handled at a time