[asterisk-users] Pre-paid Billing

[Jim Boykin]

Thanks guys for inputs...not allowing multiple call is not an option -
essentional thats the problem we try to solve :)

Since we have our own CDR module, we can avoid external process. What
are the evens to listen for?

Other ideas will also be appreciated.

On Thu, Sep 18, 2008 at 8:23 PM, Alex Balashov
<abalashov at evaristesys.com> wrote:
> Igor Zamocky wrote:
>> Isn't 'don't allow multiple calls' acceptable solution?
>> At least, it's the simplest one :)
>>
>> I can imagine solution with multiple calls allowed, but it needs some external
>> synchronous processing. With every call you should start process, that will
>> decrement user's balance based on dialled destination, you have to update
>> balance every second. After balance=0 you just kill active call(s).
>>
>> The fact, that there are multiple calls means nothing, just more processes
>> will decrement balance for the same user.
>>
>> Btw, this will give You oportunity upgrade balance during call, so active call
>> can be longer than we originally thought - of course, you should not use S(x).
>>
>> There will be probably a lot of other / more effective, easier, ... / ideas :)
>
> You don't have to update the balance every second - increments of
> something like 10 seconds will do.  And you can have one synchronous
> process - not many - that listens to Manager events and updates the call
> times and balances accordingly.  An outside process can also trigger a
> Hangup event causing the call to be hung up if credit is exhausted, or
> too low.
>
> Then, you can define a minimum formula for the balance required to admit
> a new call.  Something like a minute of credit being required after
> subtracting the usage of all existing simultaneous calls in progress at
> the next projected utilisation polling interval.
>
> But you are essentially correct.  Things are, of course, far easier if
> you just don't allow multiple simultaneous calls.  :-)
>
> -- Alex
>
> --
> Alex Balashov
> Evariste Systems
> Web    : http://www.evaristesys.com/
> Tel    : (+1) (678) 954-0670
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>
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