[SR-Users] CNXCC PrePaid module

[Carlos Ruiz Díaz]

Hello,

"i_pulse" and "f_pulse" are direct translations of the Spanish (I noticed
you speak it) phrases "pulso inicial" and "pulso final", which I don't
think have the same meaning in English. Updating the docs and using the
proper terminology are pending matters on this module.

Both values represent the initial and interim costs of the call, in your
case, it is being billed second by second (1:1), subtracting
"0.000666666666666667"
every second from a pool of credit that is equal to "0.0006500000".

The message that's being shown, looks like a precision loss error, which is
unlikely because I used numbers even smaller than yours. Please print the
values of $var(credit) and $var(cost_per_sec) before calling the cnxcc
function.

Furthermore, you should also consider checking your values before passing
them to the function. For example:

*1. check if the credit is greater than the cost per second, *before*.*

*if ($var(credit) > $var(cost_per_second)) {*
*        sl_send_reply("402", "payment required");*
*        exit;*
*}*

There's no reason to call the function when the conditions are not met.
Cnxcc will authorize the call and hang it immediately (1 second later).

I may need to add this check myself inside the module.

*2. make sure you are rejecting the call in case of module's error. *





*if (!cnxcc_set_max_credit("$var(client)",    "$var(credit)",
"$var(cost_per_sec)",    "$var(i_pulse)",*

*    "$var(f_pulse)") {*

*        sl_send_reply("503", "something's wrong in the server");*

*        exit;*
*}*

Regards,
Carlos




On Fri, May 9, 2014 at 2:45 PM, Rene Montilva <renemontilva at gmail.com>wrote:

> Hi Carlos
>
> This my kamailio config:
>
> #!ifdef CNXCC_MONEY
> sql_query("ca", "select * from
> billing.sel_customer_credit('pepe','xxxxxxx","ra");
>
> xlog("L_INFO", "Setting up money based credit control");
>
> if($dbr(ra=>rows)> 0){
> xlog("L_INFO", "saldo:$dbr(ra=>[0,0]) y seg:$dbr(ra=>[0,1]) ");
>
> $var(credit) = $dbr(ra=>[0,0]); # 30$ of credit
> $var(cost_per_sec) = $dbr(ra=>[0,1]); # 1$ per sec
> $var(i_pulse) = "1"; # 1$ to establish the call
> $var(f_pulse) = "1"; # 1$ per second
>
>
> }
>
> sql_result_free ("ra");
>
> # if only one call is established, that call should last 9 seconds.
>
> if (!cnxcc_set_max_credit("$var(client)",
> "$var(credit)",
> "$var(cost_per_sec)",
> "$var(i_pulse)",
>
>
>
> And this are the values by syslog info
>
> INFO: <script>: saldo:0.0006500000 y seg:0.000666666666666667
> ERROR: cnxcc [cnxcc_mod.c:1425]: set_max_credit(): credit value must be >
> 0: 0.000000
>
>
>
>
>
>
> On Fri, May 9, 2014 at 3:08 PM, Carlos Ruiz Díaz <
> carlos.ruizdiaz at gmail.com> wrote:
>
>> Hi,
>>
>> Can you paste the code you are using, with the values that each variable
>> contain at the moment of initiating the call?
>>
>> Regards,
>>
>>
>> On Fri, May 9, 2014 at 2:35 PM, Rene Montilva <renemontilva at gmail.com>wrote:
>>
>>> Hi list
>>>
>>> I don't understand prepaid logic calculation, because when my credit is
>>> 0 or lees than cost per second, the call is established equal
>>>
>>> $var(i_pulse) and $var(f_pulse) how this works????
>>>
>>>
>>>
>>> _______________________________________________
>>> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
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>>>
>>>
>>
>>
>> --
>> Carlos
>> http://caruizdiaz.com
>> http://ngvoice.com
>> +52 55 3048 3303
>>
>> _______________________________________________
>> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
>> sr-users at lists.sip-router.org
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>>
>>
>
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>


-- 
Carlos
http://caruizdiaz.com
http://ngvoice.com
+52 55 3048 3303
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