NAME

       proslicerl - Measure the echo-return loss on Voicetronix FXS telephony modules

SYNOPSIS

       proslicerl [options]

DESCRIPTION

       The proslicerl utility tests the echo-return from a handset connected to a Voicetronix FXS
       module, such as those used on the OpenPCI range of  cards.   It  can  scan  all  available
       impedance values to find the best match for a particular handset.

       When  running  this  test the handset must be off-hook and should have the microphone well
       muted for the duration of the test.

       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.

       If no --impedance is specified, and the --scan  option  is  not  used,  then  the  default
       impedance value (based on the port's country selection) will be used.

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.

       --impedance number
              Test a particular impedance setting [0 - 7].

       --scan Test all available impedances.

       --playgain db
              Set the hardware play gain.  Values may range from -12.0 to 12.0.

       --recgain db
              Set the hardware record gain.  Values may range from -12.0 to 12.0.

SEE ALSO

       vdaaerl(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).