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

       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                                Oct 11, 2007                                     PROSLICERL(1)

       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 mustbeoff-hook and should have the microphonewellmuted  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.

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

       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.

vdaaerl(1)

proslicerl [options]