[asterisk-biz] Experimental/new VoIP rate search engine.

[Ken Rice]

I have seen this time and time again and it typically is 1 of 2 things that
cause this problem... Either the buyers gear or the sellers gear is dropping
calls for a variety of reasons...

However "missed a bye" is a pretty poor excuse for the situation... BYEs are
acknowledged... And resent a number of times... Even if you did miss 1 BYE
message, I doubt you missed 6 or 8 of them as the end terminating the call
would resend them repeatedly until it gave up...

A perfect example of how this can happen is where an ITSP is trying to route
all their calls via asterisk and some telemarketer signs up and dropps 1000
calls/sec on them. Asterisk is not designed to handle this kind of volume.
(There are people out there that will claim this but I challenge them to
publish a document with verifiable results) So you end up with a hung
(deadlocked) or crashed system that eventually is reset and you just lost
who knows how many calls and how many CDRs leaving you no good way to bill
for the time or validate your bill from the upstream carrier. And this is
not just an Asterisk issue this is any switching solution that gets
overloaded be it asterisk, coppercom, nextone or even Sonus. (altho most of
those guys have some radius based nibble billing so they atleast don't loose
a full CDR)

K



> From: Nitzan Kon <nk3569 at yahoo.com>
> Reply-To: <nk3569 at yahoo.com>, Commercial and Business-Oriented Asterisk
> Discussion <asterisk-biz at lists.digium.com>
> Date: Sun, 4 Jan 2009 21:02:45 -0800 (PST)
> To: Commercial and Business-Oriented Asterisk Discussion
> <asterisk-biz at lists.digium.com>
> Subject: Re: [asterisk-biz] Experimental/new VoIP rate search engine.
> 
> --- On Sun, 1/4/09, Alex Balashov <abalashov at evaristesys.com> wrote:
> 
>> Many of them have claimed they lose a ton of money from
>> accounting problems caused by the unreliability of signaling
>> (as though SIP doesn't have reliable retransmission of transactional
>> messages or something) but they've never shown me any numbers to
>> substantiate that.
> 
> OK, here's some statistics for the month of December for
> the carrier in question:
> 
> Our record shows:
> 100,504 calls
> 130,740:27 minutes total
> 
> Their record shows:
> 100,161 calls (probably just time difference here
> 179,811.28 minutes total
> 
> Their record shows total rate charged $229 higher than what
> our billing system determined we SHOULD have been charged.
> In other words- $229 extra have been charged due to signaling
> problems - and this is just one month.
> 
> I used to ask them for refunds for these but to be honest it's
> such a PITA that I just gave up and started routing most of
> our traffic to other carriers.
> 
> Bad billing is bad for business no matter how great your
> call quality is. :)
> 
> -- Nitzan
> http://www.comparevoipproviderrates.com/
> 
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