[Asterisk-Users] Detect Dialtone

[bodra]

yes thats one issue the other issue is that sometimes the pstn line is dead due to some technical problems so people trying to make calls will just listen silence and they'll never know whats going on...


---------- Original Message ----------------------------------
From: Rich Adamson  <radamson at routers.com>
Reply-To: Asterisk Users Mailing List - Non-Commercial Discussion<asterisk-users at lists.digium.com>
Date:  Sun, 28 Aug 2005 08:52:45 -0600

>> i need to know something in the zaptel configuration
>> as it seems i can configure detecting the busy tone and hangup after number of busy tone 
>counts, that was great but the problem is sometimes the pstn line has no dialtone and when i 
>try to make call it continue dialing while not having a dialtone! while it should say "all 
>lines are busy/congested" how can i configure that??
>> 
>> i already done (immediate=no) and still it opens the zap trunk even when theres no dialtone 
>and shows that "zap/3 answered"
>> 
>> -----------------------------------------------------------------
>> ;Specify whether the channel should be answered immediately or
>> ; if the simple switch should provide dialtone, read digits, etc.
>> ;
>> immediate=no
>> ------------------------------------------------------------------
>
>I might be way off base here, but the immediate=no parameter is oriented
>towards incoming zap calls (not outgoing calls), and the callprogress
>and busy detect stuff was intended to detect busy tones (not dial tone).
>I don't think there is any logic in the zap channels to "listen for
>dial tone before dialing". (But, I could be wrong.)
>
>What are you using for the zap fxo channel (eg, channel bank, tdm, x100p)?
>
>Are you trying to play with the case where you have an analog phone
>bridged on your fxo line, and detect the lack of dialtone when 
>someone is using that analog phone?
>
>
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