[asterisk-users] FXO modules and polarity reverse

[Tzafrir Cohen]

On Wed, Feb 06, 2008 at 09:54:14PM +0200, wassim darwish wrote:
> 
> I would like to know if any body tried to connect gsm gateway with 
> polarity reversal to fxo module at asterisk server ,and if the 
> polarity reversal solve the problem of the answer and hangup 
> supervison on calls .i appreciate any help.Thanks in advance;Wassim

Which FXO adapter?

I hope you realise that the X100P that our Impartial Sam is pushing for
to connect to some GSM gateways does not support detecting polarity
reversal.

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               Tzafrir Cohen
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