[asterisk-users] polarity reverse

[Justas Gulbinskas]

Hi,

I have a problem with polarity reverse

this my dahdi config 

[channels]
 context=default
 usecallerid=yes
 hidecallerid=no
 callwaiting=yes
 usecallingpres=yes
 callwaitingcallerid=yes
 threewaycalling=yes
 transfer=yes
 canpark=yes
 cancallforward=yes
 callreturn=yes
 echocancel=yes
 echocancelwhenbridged=yes
 relaxdtmf=yes
 rxgain=0.0
 txgain=0.0
 group=1
 callgroup=1
 pickupgroup=1
 immediate=no
 answeronpolarityswitch=yes 

I use asterisk 1.6.2 and sangoma a400 fxo ports.
Then i try call i get chan_dahdi.c: Ignore possible polarity reversal on line seizure