184.108.40.206 220.127.116.11 18.104.22.168
This setting is used to configure the default behaviour in call waiting scenarios. Default value on will keep the active call on the display, regardless of any incoming calls.
All user actions such as hold or transfer will affect the active call. Disabling this setting will display the latest incoming call (all actions will be applied to the call displayed)
(versions < 22.214.171.124 and < 126.96.36.199: off)