Configuring Options Related To Dial Plan - HP FlexNetwork MSR Series Configuration Manual

•
Energy detection—DTMF detection is implemented by calculating the frequency spectrum of
the input voice signal. The energy threshold limits the spectrum shape of the input signal. A
signal is considered a valid DTMF only when all requirements are met.
•
Sensitivity detection—A higher DTMF detection sensitivity reduces the possibility of missing
the detection of a true DTMF signal but increases the possibility of false detection; a lower
DTMF detection sensitivity reduces the possibility of false detection but increases the possibility
of missing the detection of a true DTMF signal.
Configuration procedure
To configure DTMF detection:
Step
1. Enter system view.
2. Enter voice subscriber
line view.
3. Configure the DTMF
detection sensitivity.
4. Configure the DTMF
detection sensitivity
level.
5. Set the DTMF detection
sensitivity.

Configuring options related to dial plan

Step
1. Enter system view.
2. Enter voice subscriber line
view.
3. Enable the private line auto
ring function.
Command
system-view
subscriber-line line-number
dtmf threshold analog index
value
dtmf sensitivity-level { high |
low | medium
[ frequency-tolerance value ] }
dtmf threshold digital value
Command
system-view
subscriber-line line-number
private-line string
48
Remarks
N/A
N/A
Optional.
By default, indexes 0 to 12 correspond
to 1400, 458, -9, -9, -9, -9, -3, -12, -12,
30, 300, 3200, and 375, respectively.
For meanings of these parameters, see
HPE FlexNetwork MSR Router Series
Comware 5 Voice Command
Reference.
This command is used by professional
personnel to adjust the device in the
case of DTMF detection failure. Usually,
the default value is adopted.
Optional.
By default, the DTMF detection
sensitivity is low.
This command is valid only for the
FXS/FXO voice subscriber line.
Support for the medium keyword
depends on the voice card.
Optional.
By default, the value of DTMF detection
sensitivity level is 0, that is, insensitive.
This command is only applicable to the
BSV voice subscriber line.
Remarks
N/A
N/A
Optional.
Disabled by default.