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

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@yahoo.com> wrote:

> --- On Mon, 1/5/09, Alex Balashov <abalashov@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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