R2511-HP MSR Router Series Voice Command Reference(V5)

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Parameters
general: Uses the universal frame erasure algorithm.
specific: Uses the specific algorithm provided by the voice gateway.
Examples
# Configure the voice gateway to use the universal packet loss compensation algorithm.
<Sysname> system-view
[Sysname] subscriber-line 1/0
[Sysname-subscriber-line1/0] plc-mode general
receive gain
Use receive gain to set the gain value at the voice subscriber line input end.
Use undo receive gain to restore the default.
Syntax
receive gain value
undo receive gain
Default
The input gain on the voice interface is 0 dB.
Views
FXS voice subscriber line view, FXO voice subscriber line view, E&M voice subscriber line view, BSV voice
subscriber line view
Default command level
2: System level
Parameters
value: Voice input gain in dB, in the range of -14.0 to +13.9 (accurate to one decimal place).
Usage guidelines
This command is applicable to FXO, FXS, analog E&M, BSV and E1/T1 voice subscriber lines.
When the voice signals on the line attenuate, this command can be used to appropriately increase the
voice input gain.
Gain adjustment might lead to call failures. Adjusting the gain is not recommended. If necessary, make
sure you understand the impact of the adjustment on your call before you use the command.
Examples
# Set the voice input gain to 3.5 dB on subscriber line 1/0.
<Sysname> system-view
[Sysname] subscriber-line 1/0
[Sysname-subscriber-line1/0] receive gain 3.5
Related commands
• transmit gain
• subscriber-line