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• Incoming calls that are transferred by the phone system's call manager (Accept call directly), 
• Incoming calls that are not transferred by the call manager (Incoming Calls without Call Manager),
• Calls that you initiate via a function key (Outgoing Calls via function key)
• Other outgoing calls (Execute call), 

you have the following options to accept/execute the call: 

• 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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"Listen ports" for VoIP connections

Use random ports

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Choose whether or not to use ICE (Interactive Connectivity Establishment). ICE is similar to STUN (a Session Initiation Protocol (SIP) method for overcoming NAT firewalls.

Saving settings

•  Click  Click on Save to save your settings on the VoIP Settings screen.

Security settings

This screen is where you create security settings for your phone.

Settings Settings -> > Network and Connections -> Security Settings

Remote management

• Select whether you want to Allow access from other networks to the web configurator (Yes) or not (No).

If you permit Remote Management, this increases the risk of unauthorised access to yourdevice settings.

• Select the network protocol to be used for the communication:

• • TLS (Transport Level Security)
  • UDP (User Datagram Protocol
  • UDP (Transmission Control Protocol)

 Security settings

On this screen you can download server certificates onto your phone, delete downloadedcertificates and specify how invalid certificates should be handled.
Server certificates allow a server to be digitally identified via SSL (Secure Sockets Layer). Operating a server with SSL requires a server certificate both for one-way authentication (server to the client) and for two-way authentication (between client and server). A server certificate has to be downloaded onto your device so that the device can carry out authentication.
The Server certificates and CA certificates lists contain all downloaded certificates.

• Select a certificate from one of the lists.
• Click on Remove to delete the certificate from the list.
• Click on Details to display information about the certificate.
• Click on Disable/Enable to  to temporarily deactivate/activate the certificate.

Import a local certificate

In In order for a certificate to be downloaded to your phone, it must be available in your network.

• Click on Browse to search for the file on your PC or in your network. Select the required file.
• Click on Upload to download the file onto the device.

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