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Интерактивная система просмотра системных руководств (man-ов)

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isdntelctl (8)
  • >> isdntelctl (8) ( FreeBSD man: Команды системного администрирования )

  • BSD mandoc
     

    NAME

    
    
    isdntelctl
    
     - control isdn4bsd telephone sound format conversion
    
     
    

    SYNOPSIS

    [-c ] [-g ] [-u unit ] [-A ] [-U ] [-N ]  

    DESCRIPTION

    The utility is part of the isdn4bsd package and is used to configure the sound format conversion facilities of the /dev/i4btel interfaces.

    The following options are available:

    -c
    Clear the telephone input queue.
    -g
    Get the sound format currently in use.
    -u
    Set the /dev/i4btel unit number. The default value is zero to access device /dev/i4btel0.
    -A
    Do A-law (ISDN line) -> u-law (userland) conversion.
    -U
    Do u-law (ISDN line) -> A-law (userland) conversion.
    -N
    Set sound conversion to do no format conversion.

    The telephony data stream comes out of the line in a bit-reversed format, so the i4btel(4) driver does the bit-reversion process in any case.

    Additionally, the user can specify to do A-law to u-law, u-law to A-law or no conversion at all in the i4btel driver by using the utility.  

    FILES

    /dev/i4btel<n>  

    EXAMPLES

    The command:
    isdntelctl -g
    

    displays the currently used sound format for device /dev/i4btel0.  

    SEE ALSO

    g711conv(1), i4btel(4), isdnd.rc5, isdnd(8)  

    STANDARDS

    A-Law and u-Law are specified in ITU Recommendation G.711.  

    AUTHORS

    The utility and this manpage were written by An Hellmuth Michaelis Aq [email protected] .


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    FILES
    EXAMPLES
    SEE ALSO
    STANDARDS
    AUTHORS


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