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• via headset 
• via handsfree or
• not at all (No) (incoming calls)

BLF list IP address (URI) (only for Broadsoft)
Busy Lamp Field (BLF) features allow users to view the status of phone lines that are associated with specific phone features. Using BLF pickup, it is possible to answer an incoming call for all lines on the Maxwell 10 that the phone is allowed to monitor. Which BLF features are configured for the phone is defined on the phone system. 

• In the BLF list user field, enter the IP address (URI) of the server providing the list of devices for which the phone is able to accept incoming calls. 

This function is only available if supported by the phone system. 

Extended service platform PBX of service provider

• If your provider provides extended PBX services, enter the Server Address and the phone sytem account data, e.g. UCI Login-ID and the UCI Password. The necessary data to be entered depend on the selected phone system. 

Saving settings

• Click on Save to save your settings on the Phone Systems screen.

QoS settings (Quality of Service)

On this screen you can optimise the voice quality of your IP telephone. 
The voice quality depends on the priority of the voice data in the IP network. Prioritising the VoIP data packets is done using the QoS protocol DiffServ (Differentiated Services). DiffServ defines a number of classes for the quality of service and, within these classes, various priority levels for which specific prioritisation procedures are defined.
You can specify different QoS values for SIP and RTP packets. SIP packets (Session InitiationProtocol) contain the signalling data, while RTP (Real-time Transport Protocol) is usedfor the voice transfer.
Settings -> Network and Connections -> Quality of Service (QoS)

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