3Com
®
VCX V7111 VoIP Gateway User Guide
183
Parameter Description
Max. Flash-Hook Detection Period
[msec]
[FlashHookPeriod]
Defines the flash-hook period (in msec) for both analog and IP sides.
For the analog side it defines:
- The maximal hook-flash detection period (for FXS gateways). A
longer signal is considered offhook / onhook event.
- The hook-flash generation period (for FXO gateways).
For the IP side it defines the flash-hook period that is reported to IP.
The valid range is 25 to 1500. The default value is 700 msec.
For FXO gateways, a constant of 90 msec must be added to
the required hook-flash period. For example, to generate a
450 msec hook-flash, set ‘FlashHookPeriod’ to 540.
Configuring the General Media Settings
To configure the General Media Settings parameters:
1
Open the General Media Settings screen (
Advanced Configuration
menu >
Media
Settings
>
General
Media
Settings
option); the General Media Settings screen is
displayed.
Figure 65
General Media Settings Screen
2
Configure the General Media Settings according to
Table 60
.
3
Click
Submit
to save your changes.
4
To save the changes so they are available after a power fail, see
Saving Configuration
.
Table 60
Media Settings, General Media Settings Parameters
Parameter Description
DSP Version Template Number
N/A.
Max Echo Canceller Length
[MaxEchoCancellerLength]
Maximum Echo Canceller Length in msec:
[0]
= based on internal gateway settings (default)
[4]
= 32 msec
[11]
= 64 msec
The gateway must be reset after the value of
‘MaxEchoCancellerLength’ is changed.
It is unnecessary to configure the parameter
EchoCancellerLength as it automatically acquires its
value from the parameter MaxEchoCancellerLength.
Summary of Contents for VCX V7111
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