[Asterisk-Users] overlap zaphfc - dialtone

[Goran Skular]

>My setup is: 1 HFC card with bristuff -> ZAP/g1 (2B + 1D 
>channels), SIP phones (I just removed TDM400P with 4 FXS)
>
>I created test extension 222 which goes directly to g1. In 
>Zapata.conf overlapdial is set to yes.
>
>First I created this extension:
>
>exten => 222,1,Dial(zap/g1,100,tc)
>
>and channel got hangup every time.. So I even saw bug 4913 
>http://bugs2.digium.com/view.php?id=4913&nbn=1 and bug 4771.. 
>But that wasn't my problem. my problem is that I didn't 
>included / after g1.. So, I changed that and now my extension 
>look like:
>
>exten => 222,1,Dial(zap/g1/,100,tc)
>
>This solved the problem with line being hangup-ed like in bug 
>4913, and I am getting the telco dialtone.
>
>So, when dialing 222 I get:
>
>    -- Executing Dial("SIP/200-dd52", "zap/g1/|100|tc") in new stack
>    -- Requested transfer capability: 0x00 - SPEECH
>    -- Called g1/
>    -- Zap/1-1 is making progress passing it to SIP/200-dd52
>    -- Zap/1-1 is ringing, hanging up.
>    -- Hungup 'Zap/1-1'


It seems that when it detects Ringing, Asterisk executes Hangup in the same
time.... But why?