[Asterisk-Users] DS3000P - 20 E1 capacity on single card

[Kevin P. Fleming]

tmassey at obscorp.com wrote:

> In other words, a PCI-based co-processor would double the PCI bus 
> bandwidth necessary.  And with a latency-sensitive product like voice, bus 
> contention is not something you want to add to!  :)

It only 'doubles the bandwidth required' when compared to a single-board 
solution, which does not exist. When compared to doing the transcoding 
and echo can in the host CPU, it would be a major win :-)

Also, keep in mind that a DS3 is _only_ 45 megabits per second. Any PCI 
bus (even lowly 33MHz 32-bit PCI) can easily handle 90 megabits per 
second of traffic. People looking a DS3 cards are also likely to deploy 
them in servers with multiple independent PCI buses, which would then 
allow for even more bandwidth. The mind boggles at the possibilities!