NEC Univerge SV8100 Programming Manual page 869

UNIVERGE SV8100
Input Data
Item
No.
17
Feature Cross Reference

Programming Manual
Item
DTMF Detect Minimum S/N Ratio
Used only by IPLB.
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 person's voice, there is the possibility
that the level except DTMF is large. The
system will be able to protect a wrong
DTMF detection by choosing 0db value
or so.
Conditions
None
Voice Over Internet Protocol (VoIP)
Input Data
0: -9db
1: -8db
:
6: -3db
7: -2db
8: -1db
9: 0db
Issue 10.1
Default
6 (-3db)
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