NEC Univerge sv8500 Manual page 1223

The result of data setting is indicated in 1-byte (Hex.) format in accordance with the setting dialog followed
Note:
by prompt. The meaning of 1-bite data is as shown below:
When selecting TOS (IP Precedence Type)
7 6 5 4
Prec D
When selecting Diffserv
6 4 3 2
7 5
DSCP= Diffserv Codepoint (6 bits)
7. SET Δ DTMF_IN
This command is used to specify whether Inband DTMF Relay is used or not.
MG-PRI > SET DTMF_IN ON
Inband DTMF Relay setting succeeded.
Inband DTMF Relay is available when codec used for speech is G.711 only. When using this function, the
Note:
system does not check the codec type. Therefore, make sure the codec type is G.711 when setting this value.
3
2 1 0
T
R C
1 0
Δ P1
111
High
110
101
100
Priority
011
010
001
Low
000
High EF
EF (Expedited Forwarding): 101110
AF (Assured Forwarding):
AF
BF (Best Effort):
Low
BF
P1-Specify OFF or ON.
OFF=Inband DTMF Relay is not used (default)
ON=Inband DTMF Relay is used
VOL.2-970
MG-PRI/PRA
Prec.=PRECEDENCE (3 bits)
D=Delay
T=Throughput
R=Reliability
C=Cost
111110
000010
000000