On Thu, 28 Oct 2004, Nicol�s Gudi�o wrote:

> Asterisk detects hangups with busydetect and busycount just fine. At
> least for me. The problem is ANSWER detection for billing purposes.

Does asterisk support polarity reversal detection for answer/disconnect 
supervision? For a quick look at the source it does not appear to do so, 
only as a CallerId trigger.

It does not look that hard to add since a polarity message is already sent 
from the zaptel driver. However, I have no such cards so I can not try 
myself. We use isdn. :)

Or maybe I am wrong and Asterisk does support polarity reversal
supervision.

Peter


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