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#   Channel(s) are signalled using in-band single freq tone. 
#   Syntax as follows: 
#    
#     channel# => sf:<rxfreq>,<rxbw>,<rxflag>,<txfreq>,<txlevel>,<txflag>
#   
#   rxfreq is rx tone freq in Hz, rxbw is rx notch (and decode)
#   bandwith in hz (typically 10.0), rxflag is either 'normal' or
#   'inverted', txfreq is tx tone freq in hz, txlevel is tx tone 
#   level in dbm, txflag is either 'normal' or 'inverted'. Set 
#   rxfreq or txfreq to 0.0 if that tone is not desired.

However, in dahdi_cfg.c, no such configuration option is tested for, so it
is not possible to configure the card to use single frequency signaling.

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Issue History 
Date Modified    Username       Field                    Change               
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2009-12-09 08:48 araasch        New Issue                                    
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