libvpb
4.2.57
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The following environment variables affect the behaviour of libvpb.
Sets the region to use for global default values. Its value may be either a string, indicating the name of the region such as AUSTRALIA
, JAPAN
, UK
, USA
, or the numerical value of that region used for international phone numbering, such as 61, 81, 44, 1, respective to the names above. If not specified, the default value is AUSTRALIA
. Per port country selection may be made programmatically using the vpb_set_country()
api call, or through the use of a configuration file.
Sets new default parameters for use by the programmable tone detector. The variables VPB_TONE1
... VPB_TONE9
may also be specified if more than one tone is to be redefined.
If set to the value of 1
, this variable will cause libvpb to output debugging messages tracing its activity to stdout
. If set to any other value it will be used as the path to a file where such messages will be written.
If set to the string "V4LOG"
, this variable indicates that OpenLog cards should be assumed if the OpenLine card type has not otherwise been explicitly specified. Has no effect with cards of other types.