NEC SL1100 Programming Manual page 540

SL1100
Item
No.
14 ICMP REDIRECT
15 DTMF Detect Mini-
mum Duration
16 DTMF Detect Mini-
Program
mum Level
84
17 DTMF Detect Mini-
mum S/N Ratio
Conditions
None
Feature Cross Reference
None
2-520
Item Input Data
0 = Enabled, Voice
packets will follow ICMP
redirect messages.
1 = Disabled, Voice
packets will NOT follow
the ICMP redirect mes-
sage.
23 ~ 2000 ms
0: -40dbm
1: -39dbm
2: -38dbm
:
31: -9dbm
0: -9db
1: -8db
:
6: -3db
7: -2db
8: -1db
9: 0db
Description
This setting is the minimal time setting to
distinguish DTMF tones for the IPLB. If the
signal is shorter than the value set, the sig-
nal is deemed not a DTMF.
This setting is the minimal level setting to
distinguish DTMF tones. If the signal is
shorter than the value set, the signal is
deemed not a DTMF.
This is a frequency ratio setting of the
DTMF for the frequency other than the
DTMF tone. When this value comes to
0db, the DTMF is distinguished only when
the signal level except DTMF is low. In
case of wrong DTMF detection by a per-
son's voice, there is the possibility that the
level except DTMF is large. The system
will be able to protect a wrong DTMF de-
tection by choosing 0db value or so.
Program 84 : Hardware Setup for VoIPDB
ISSUE 4.0
Default
1
30
2 (-38dbm)
6 (-3db)