> AAH 1.3, Digium 4-port FXO card connected to PSTN
>  
> I am having problems with outbound calls, where the call goes to either an
> error message from the PSTN, or a fax number, or a wrong number. It works
> correctly maybe 1 time in 10.
>  
> Also, outbound calls *sometimes* work if they are numbers previously dialed.
> 
> I've pasted below the relevant parts from extensions-additional and
> zapata.conf, as well as a bad call log.
>  
> Inbound calls work fine. What's wrong with outbound?

Have you tried inserting a "w" in the dial string?

If not, try something like this:
 exten => _770XXXX,1,Dial(Zap/g1/w${EXTEN}) 

Some central office switches don't like the speed at which asterisk
starts sending dtmf. The "w" inserts a small delay before dialing.


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