[asterisk-users] Answer Supervision problem

[Timur S. Sattarov]

Does anybody work with zaptel and analog lines ?
how to configure it in ideal case, if I really got correct answer 
supervision from CO ?

regards
Tim

Timur S. Sattarov wrote:
> Hi !
>
> I've Linux Debian/testing, asterisk-1.2.13, zaptel 1.2.10 and Digium, 
> Inc. Wildcard TDM2400P with 24 FXO ports.
> Our equipment is located in US. Lines and phone numbers from AT&T.
> How can I detect answers on these lines ?
> We've discovered that during answer voltage falls and after hangup - 
> rises.
> During remote hangup there is kernel message from zaptel driver  - NO 
> BATTERY on 2/24 and then BATTERY on 2/24 (-)! and 
> hanguponponlarityswitch option in zapata.conf works fine.
> There is no such message during answer. But we can see voltage change. 
> Is there any way to detect answer like we have on hangup ?
> Or if there any possibility to detect answer through voltage changes 
> with zaptel ?
> Please help me.
>
> Thanks in advance.
>
> With best regards
> Timur.
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