[asterisk-users] 200+ analog phones connected to FXS modules

[Tzafrir Cohen]

Hi

On Thu, Nov 30, 2006 at 12:59:13PM -0500, Andrew Kohlsmith wrote:
> On Thursday 30 November 2006 06:13, Zoa wrote:
> > You could go for 2 quad pri cards + channel banks or for TDMoE or usb
> > channel banks.

[ disclaimer: I work for the company that makes the USB channel bank
which was mentioned by Zoa ]

> > The last option would be the cheaper and more scalable one imho
> 
> The scale here is already bordering on unrealistic.  I wouldn't expect them to 
> want to make this too much bigger.
> 
> Scaling aside, 200+ ulaw channels (13Mb/sec not including overhead) over USB?  
> You're joking, right?  I know that USB 2.0 is rated at 480Mbps but has this 
> actually been tested and verified?  I would imagine USB 2.0 chipset variants 
> and inconsistencies are even worse than that of PCI.

USB2 actually seems to be a well-established standard. It is used by
many devices. For instance, people with high-capacity USB storage
devices would be rather upset to find their chipset acting up.

And if one USB2 card is not enough, get a USB2 PCI adapter for 10$ from
your local hardware store.

-- 
               Tzafrir Cohen       
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