MEASERL(1) Voicetronix Telephony Tools MEASERL(1)NAME
measerl - Measure the echo-return loss on Voicetronix telephony hardware
SYNOPSIS
measerl [options]
DESCRIPTION
The measerl utility tests the echo-return loss on the phone line. For hardware that supports it, it can scan through bybrid balance regis-
ter settings to help establish a lower ERL. Having a lower ERL improves DTMF cutthrough and audio quality. The software echo cancellation
needs at least -6dB before it can make a difference.
FXS (station) ports should perform this test using the --nohook option with the handset already off hook and the microphone muted.
FXO (trunk) ports will answer to an incoming call.
A series of tones will be played down the line to determine the ERL in several parts of the audio spectrum. You should avoid creating any
other noise on the line while this test is running, or the results may be skewed.
OPTIONS
The following options are available:
--help, -?
Show summary of options.
--card number
Explicitly select the card to test. Default is card 0.
--port number
Explicitly select the port to test. Default is port 0 of the card being tested.
--nohook
Use this option for testing station (FXS) ports.
--offhook
Take an FXO port off hook immediately. Don't wait for an incoming ring.
--bal1 value
--bal2 value
--bal3 value
Set codec hybrid balance registers. Only for hardware which explicitly supports that.
--ec Enable the echo canceller.
--pg gain
Set codec play gain. Values may range from -12.0 to 12.0.
--rg gain
Set codec record gain. Values may range from -12.0 to 12.0.
--dial port
Dial out another port on the same card.
--dial port number
Dial number from port on the same card.
--scan file start end step
Scan the hybrid balance register settings from start to end in increments of step, recording the results to file. Only for hardware
that explicitly permits setting these registers. Valid values for the start and end are in the range 0 - 255.
--autoscan
Automatically scan the codec balance values.
--handset
Proto handset mode.
--loop Enable software loopback.
--hostecho
Enable the host based echo canceller.
SEE ALSO vpbecho(1), ringstat(1)AUTHOR
Ron Lee, Peter Wintulich, David Rowe, Voicetronix <support@voicetronix.com.au>
This manual page was written by Ron <ron@debian.org>, for the Debian project (but may be used by others).
VPB driver package Jan 4, 2007 MEASERL(1)
Check Out this Related Man Page
MYSON-DIAG(8) System Manager's Manual MYSON-DIAG(8)NAME
myson-diag - EEPROM setup and diagnostic program for ethernet cards based on the Myson MTD803 chip.
SYNOPSIS
myson-diag [options]
DESCRIPTION
myson-diag is a program that you can use to diagnose problems with ethernet cards based on the Myson MTD803 chip.
OPTIONS
These programs follow the usual GNU command line syntax, with long options starting with two dashes (`-'). A summary of options is
included below.
-h, --help
Show summary of options.
-V, --version
Show version of program.
-v, --verbose
Verbose mode.
-q, --quiet
Be very unverbose.
-# <cardnum>
Use card number <cardnum>.
-a, --show_all_registers
Print all registers.
-e, --show-eeprom
Dump EEPROM contents to stdout.
-E, --emergency-rewrite
Re-write a corrupted EEPROM.
-p, --port-base <port>
Specify port to use.
-A, --Advertise <mediaype>
Advertise media type. Valid Options are: 10baseT, 100baseT4, 100baseTx, 100baseTx-FD, 100baseTx-HD, 10baseT-FD and 10baseHD.
-F, --new-interface <interface>
Interface number. Options that make sense are: 10baseT, 10base2, AUI, 100baseTx, 10baseT-FDX, 100baseTx-FDX, 100baseT4, 100baseFx,
100baseFx-FDX, MII and Autosense.
-H, --new-hwaddress <address>
Set card to a new hardware address.
-m, --show-mii
Dump MII management registers.
-R, --reset
Reset the transceiver.
-T, --test
Do register and SRAM test.
-w, --write-EEPROM <values>
Write to the EEPROMS with the specified values. Do not use this, if you do not know what you do!
-f, --force-detection
Try to identify the card, even if it is active.
-t, --chip-type <card>
Explicitly set the chip. To get all valid numbers, run myson-diag with the options '-t -1'.
SEE ALSO mii-diag(8)AUTHOR
myson-diag was written and is still maintained by Donald Becker <becker@scyld.com>. This manual page was written by Alain Schroeder
<alain@debian.org>, for the Debian GNU/Linux system (but may be used by others).
February 18, 2002 MYSON-DIAG(8)