User`s guide
VoiceFinder AP2120 VoIP Gateway User’s Guide Version 1.00
AddPac Technology Co., Ltd. -
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5.7.3.5.4. Usage Guideline
A system-wide loss plan must be implemented using both input gain and output
gain commands. Other equipment (including PBXs) in the system must be
taken into consideration when creating a loss plan. This default value for this
command assumes that a standard transmission loss plan is in effect, meaning
that normally, there must be -6dB attenuation between phones. Connections
are implemented to provide -6dB of attenuation when the input gain and
output gain commands are configured with the default value of 0.
You can't increase the gain of a signal going out into the PSTN, but you can
decrease it. Therefore, if the voice level is too high, you can decrease the
volume by either decreasing the input gain value or by increasing the output
attenuation
You can increase the gain of a signal coming in to the router. If the voice level
is too low, you can increase the input gain.
5.7.3.5.5. Example
The following example configures a 3-decibel gain to be inserted at the
receiver side of the interface in the router.
port 1/1
input gain 3
5.7.3.6. operation (E&M Voice Port Command)
To set Cabling Scheme for a certain E&M Voice port, use operation command
at voice port configuration mode. To make the singal type back to default
value, use “no” command. This command is for Desctiption.
operation { 2-wire | 4-wire }
no operation