[Asterisk-Users] ASTCC Rate Calculation

[Darren Wiebe]

Rusty Shackleford wrote:

>On Sat, June 18, 2005 2:34 pm, Darren Wiebe said:
>  
>
>>Okay, I'll post both pieces of code.  What I was seeing is that calls
>>where being billed more than I thought they should be.  Lets use an
>>example with the following info:
>>
>>Call Length: 147 Seconds
>>Increments: 6 Seconds
>>Connect Charge: 100
>>Included Seconds: 30
>>Cost per minute: 100
>>
>>
>>1. Present Code:
>>eval { my $adjtime = int(($answeredtime + $increment - 1) / $increment)
>>* $increment };
>>#        adjtime = 152
>>    
>>
>
>This might be where your error is creeping in. $adjtime SHOULD equal 150.
>Remember, the int() function removes the value to the right of the decimal
>point - so int(($answerdtime + $increment -1) / $increment) = 25 and not
>25.333333333~, as your example appears to show. This makes $adjtime
>actually 150, not 152.
>  
>
You are right, I missed the one bracket.

>>eval { $cost = int($adjcost * $adjtime / 60) };
>>#    cost = 253
>>    
>>
>
>Corrected, this would be 250.
>
>Viewed another way, using a 6 second increment, 147 seconds represents 25
>such increments (actually 24.5, but we get all of the last increment, so
>it's 25).
>
>25 * 10 (the cost of one 6-second increment) = 250.
>  
>
Yes, but we need to allow for 30,6   6,1  60,30  billing.  I think the 
easiest/best way to handle this is the connect charges as ASTCC 
presently supports them.

>  
>
>>$cost += $adjconn;
>>#        Total Cost = 353
>>
>>2.  My Proposed Code:
>>$total_seconds = ($answeredtime - $numdata->{includedseconds})/$increment;
>>#        Total_Seconds(This variable is not very well named)  = 19.5
>>$bill_increments = ceil($total_seconds);
>>#        We need to bill for 20 6 second increments.
>>$billseconds = $bill_increments * $increment;
>>#        This translates to 120 seconds.
>>    
>>
>
>Which cheats us out of 27 seconds worth of revenue (actually 30 seconds,
>since that 27 seconds represents five 6-second increments).
>  
>
I don't think it does.  The 30 seconds come out because that is the 
amount included in the connect charge.  The connect charge is added back 
in here:
$cost = ($billseconds / 60) * $adjcost + $adjconn;

Darren Wiebe

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