Panasonic KX-TDA0490 Programming Manual page 22

2.2 Programming
Parameter & Description
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".
DTMF Detection Level (dB) -46-0dB
Specifies the level (in decibels) of DTMF detection.
Generally, there is no need to change the default value.
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
Bit 8
Bit 0
IP Header Version
22 Programming Guide
0 0 0 Priority: 0
0 0 1 Priority: 1
0 1 0 Priority: 2
0 1 1 Priority: 3
1 0 0 Priority: 4
1 0 1 Priority: 5
1 1 0 Priority: 6
1 1 1 Priority: 7
IHL Type of Service
Default
Don't use
-20
0 0 0 0 Normal
0 0 0 1 Monetary Cost
0 0 1 0 Reliability
0 1 0 0 Throughput
1 0 0 0 Delay
Total Length
Value Range
Use,
Don't use
-46 to 0
Reserved Bit 15
Bit 32
IP Packet