Maxwell 10 / en / A31008-N4001-R102-1-20 / web_configurator.fm / 22.01.2014
Network and connectors
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Te
mplat
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A4, V
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3.04.2012
BLF list IP address (URI) (only for Broadsoft)
Busy Lamp Field (BLF) features allow users to view the state of phone lines that are associated with
specific phone features. Using BLF pickup it is possible to answer an incoming call for all lines at 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.
The function is only available if supported by the 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 Initiation
Protocol) contain the signalling data, while RTP (Real-time Transport Protocol) is used
for the voice transfer.
Settings
Network and Connections
Quality of Service (QoS)
Saving settings
¤
Click on
Save
to save your settings on the
Quality of Service (QoS)
screen.
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Enter your chosen QoS values in the
SIP ToS/Diffserv (Range: 0 - 63)
and
RTP ToS/Diffserv (Range: 0 - 63)
fields.
Value range: 0 - 63.
Common values for VoIP (default setting):
SIP
34
High service class for fast switching of the data flow (Expedited Flow)
RTP
46
Highest service class for fast forwarding of data packets (Expedited Forwarding)
Do not change these values without consulting your network operator first. A higher value
does not necessarily mean a higher priority. The value determines the service class, not the
priority. The prioritisation procedure used in each case meets the requirements of this class
and is not necessarily suitable for transferring voice data.
Detailed information on the Diffserv protocol can be found in RFC 2474 and RFC 3168.
