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2.2 Programming
22 Programming Guide
Detailed Explanations
QoS Field Settings
The following diagrams show the bit values of the ToS field in the IP header in relation to the setting
values for the parameters under QoS Field Settings:
ToS
FAX Signal Detection
Specifies the use of the fax signal detection feature.
Fax signal detection enables end-to-end fax signal relay over
the network.
For details, refer to "Detailed Explanations".
Don't use Use,
Don't use
DTMF Detection Level (dB) -46-0dB
Specifies the level (in decibels) of DTMF detection.
Generally, there is no need to change the default value.
-20 -46 to 0
Parameter & Description Default Value Range
....
....
....
Bit 0
Bit 8
IP Header Version IHL Total Length
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
Priority: 0
Priority: 1
Priority: 2
Priority: 3
Priority: 4
Priority: 5
Priority: 6
Priority: 7
Bit 15
Reserved
Bit 32
IP Packet
Type of Service
0
0
0
0
1
0
0
0
1
0
0
0
1
0
0
0
1
0
0
0
Normal
Monetary Cost
Reliability
Throughput
Delay