NEC Univerge SV8100 Programming Manual - page 846
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Issue 11.0
UNIVERGE SV8100
2 - 804
Program 84 : Hardware Setup for VoIP
Conditions
None
Feature Cross Reference
Voice Over Internet Protocol (VoIP)
17
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.
0: -9db
1: -8db
:
6: -3db
7: -2db
8: -1db
9: 0db
6 (-3db)
Input Data (Continued)
Item
No.
Item
Input Data
Default