[Asterisk-Users] Cisco ATA and a PayPhone

[Mark Johnson]

Hi Mark,

> I've done this using SPA-2000, SPA-2000 can generate polarity reversal 
> signal, The pay-phone detects "call answer" and "hangup" by revesal 
> signal.
> also the pay-phone must be supported polarity reversal detection.
>
> http://www.cisco.com/en/US/tech/tk652/tk653/technologies_tech_note09186a00800a6210.shtml 
>
> http://michigantelephone.mi.org/distribute.html
>
> Cheers,
> ~Madhawa

I tried the reverse polarity and it didn't seem to make a difference.  
Let me back up and take the payphone out of the equation.  If hook up a 
house phone to the ATA and take it offhook, it get a busy signal after 
10 seconds.  I really need this to be more like 1 minute.  Any ideas on 
how to do that?

Mark