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

[Alex Balashov]

Yeah, but if you are doing international the quality issue you are  
introducing by being in the media path  becomes of greater importance.

On Jan 5, 2009, at 3:39 PM, Nitzan Kon <nk3569 at yahoo.com> wrote:

> --- On Mon, 1/5/09, Alex Balashov <abalashov at evaristesys.com> wrote:
>
>> A G.711u call takes about 80 kbps on the inbound media
>> stream and on the outbound one once framing, padding and
>> L2/L3 headers are factored in, as you well know.  A decent
>> server doing Asterisk can handle a few hundred calls, so
>> with every additional server doing 300 concurrent calls you
>> are driving about an additional ~25 mbps in sustained
>> bandwidth!  I mean sustained, not burst below the 95th
>> percentile.  If you are paying, say, $40/meg on your
>> commitment, as opposed to burst overages, that's another
>> $1k/mo to handle another 300 calls, plus the amortised
>> expense of a new $500 server.
>
> Remember that at these bandwidth levels you can get MUCH
> better deals than $40/meg. You can easily get half that
> and probably a lot less.
>
>> If your margins are that good (half a penny a minute) then
>> you can probably afford to screw around.  Unfortunately, for
>> most VoIP ITSPs the margins are much thinner, especially for
>> wholesalers in domestic US48 LD.  If you're making
>> 1/10th of a penny, you're only doing $5k/mo on 5 million
>> minutes.  Out of that $5k you've got to pay your total
>> colo expense, your marginal bandwidth cost on 110 calls (10+
>> meg commitment), power, salary, and all other business
>> expenses.
>
> I agree. If your margins are that low proxying the media is
> not a good idea. US48 per-minute is not good business for a
> VSP unless it's just a loss leader for other business like
> selling DIDs, international termination, etc.
>
>> $.001 is a lot closer to the margin many ITSPs are making
>> than $.005.
>
> I don't know any residential ITSPs that sell below 1 cent
> a minute. Even at 1 cent a minute your profit margin is
> between $.002-.007 a minute depending on where the user is
> calling. On average probably around $.004 or so. If you're
> making only $.001 a minute then either you're buying too
> high or selling too low. :)
>
> Either way - residential US48 pay-as-you-go by itself is
> bad business. You cannot sustain a business on that alone
> IMHO.
>
> -- Nitzan
> http://www.comparevoipproviderrates.com/
>
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