Quoting Jerry Harshany <[EMAIL PROTECTED]>:

> There is an additional alternative for a ringback to a caller, which  
>  is to use the Call File capability as noted in Van Meggelen's   
> "Future of Telephone"; 2nd ed, p306.

As it says in the book, call files allow calls to be created through  
the Linux shell. If you've used this to create a roaming callback  
service, then you must have created something that allows users to  
submit a phone number to be called back on, after which a .call file  
is created and moved to the /var/spool/asterisk/outgoing/ directory.

> sleep 8s
> mv "$1"  "$2"
> exit 0

This looks like the step that moves the newly created call file to the  
aforementioned directory.

> In my case, when the caller calls in to 'asterisk', he is prompted   
> for the number he wishes to call. The caller can be at a US or   
> international number, and he can call any US or international   
> number, WITH or WITHOUT ringback. In other words the caller   
> designates whether this is a direct connect call, or a ringback (and  
>  then bridge the called number). I have the complete flexibility of   
> my dial plan extensions to do as I wish with the phone numbers.

This is what I'm really interested in! How did you manage this? Would  
you be willing to share how you did this?

Cheers,

Jaap

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