[Asterisk-Users] Searchable Mailing Lists & NooB Question

[Rich Adamson]

Looks like your numbers add the transmit and receive data rates together,
which is not a realistic way to discuss bandwidth consumption. An IAX
link consumes about 22kb/s (round it to 30kb/s, who cares) in the transmit
direction, and another 22kb/s in the receive direction. (There's your
60kb/s.)

When comparing my numbers to things like 256,000 bits/sec of DSL
bandwidth, you truly are comparing apples to apples. So, if you 
could orchestrate all IAX calls to be just exactly perfect across the
256,000 bits/sec DSL bandwidth, that DSL circuit could supposedly
handle about eight simultanous gsm calls (256,000 divided by 30,000). 
However, there are lots of other real world issues that would preclude 
it from actually supporting anything close to eight calls. Four to 
six might be realistic if nothing else is using the DSL circuit.

------------------------
> >
> >
> >Very rough numbers: iax-gsm consumes about 22kb/s,
> >
> 
> I see about 60kb/s
> 
> > g711 about 80kb/s on
> >  
> >
> I see 155kb/s
> 
> Is that normal? This is an IAX link to voicepulse. I see all these lower 
> numbers posted around but fail to see that on my connections. Using G711,
> Its only possible to have one connection at anytime, do to my upload 
> capped at 256kb/s. So I use GSM, sounds fine anyway. Just wondering about
> the numbers.
> 
> 
> Dan
> 
> >same link unless you can set up QoS, etc.
> >
> >Lots of good info on the wiki ( www.voip-info.org ) for reference.
> >
> >
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> >
> 
> 
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