Alcatel 060170-10, User Manual, Page: 220 / 430

VoIP Commands
Page 5-78
Command Usage
Specify gain in signaling power inserted at receiver .
Syntax Options
Remarks
Transmit (TX) and receive (RX) gain is normally used when a device has volume problems.
Gain adjusts (increases or decreases) the signal level. Transmit and receive signal gains occur
per call on each end of the call. Signal gains are calculated per channel. The signal gains are
applied at the channel level. Each channel on a voice switching daughtercard can have a
different gain applied. Total gain is calculated between TX/RX points, e.g., if the receiving
VSD is set to a gain of -3 and the transmitting VSD is set to a gain of 1, the gain would be -2.
The gain inserted at the receiver comes from the voice switching daughtercard which inter-
prets receive gain as PCM interface-to-packet (H.323) network. This means that the gain is
applied to the PCM packet when it is received by the card, and after the packet has been
converted to H.323. Analog voice switching daughtercards (VSAs) convert signals to/from
PCM before transmit or receive gains are applied.
voice signaling receive gain
voice signaling channel <
slot/port/startChannel-endChannel
> receive gain <
gain_value
>
Definitions:
slot
Specifies chassis slot number where VSM is installed, (e.g.,
2
).
port Specifies physical port number on voice daughtercard, (e.g.,
1
).
startChannel
The first number in the range of voice channels (e.g.,
1
).
endChannel The last number in the range of voice channels (e.g.,
30
).
♦
Syntax Note
♦
Be sure to separate the start and end range numbers with a
hyphen (e.g.,
1-30
).
gain_value Specifies the numerical gain value. Values may range from -14 through 14
(e.g.,
-13
,
-2
,
0
,
4
,
13
, etc). A negative gain value lowers the gain and a positive gain value
increases the gain.
Default:
The default gain value is
0
.
Command Examples:
voice signaling channel 2/1/1-12 receive gain 0
voice signaling channel 2/3/1-30 receive gain 14