[VoIP] FXS Polarity Reversal on Answer Supervision

[Greg Blakely]

Hmmm... I think that I remember that asterisk can interpret polarity
reversals as either disconnect or answer, but I haven't heard if it can
cause the fxs card to reverse its polarity.
 

> -----Original Message-----
> From: voip-bounces at ckts.info [mailto:voip-bounces at ckts.info] 
> On Behalf Of Jonathan Kay
> Sent: Tuesday, September 11, 2007 10:11 AM
> To: Voice Over IP Tandem for Analog Switches
> Subject: [VoIP] FXS Polarity Reversal on Answer Supervision
> 
> 
> As per title.
> Can you get an tdm400 FXS module to reverse its line 
> polarity, on Asterisk receiving an answer supervision. So I 
> can start metering, (or pay tone) for the calling line?
> 
> TIA
> 
> Jon
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